TB31214FN ,Phase Lock LoopTB31214FNPLL FREQUENCY SYNTHESIZER FOR CORDLESS TELEPHONE
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TB31214FN
Phase Lock Loop
TOSHIBA TB31214FN
TOSHIBA Bi-CMOS INTEGRATED CIRCUIT SILICON MONOLITHIC
"rB3M2'ii4lFN
PLL FREQUENCY SYNTHESIZER FOR CORDLESS TELEPHONE
FEATURES
0 One packaging PLL, VCO and 1st MIX
0 Low operating voltage : VCC=2.O~5.5V
(Ta 2 - 10°C, Vcc--1.9--5.5V)
lt Low current consumption : Icc=16mA (Typ.)
0 Charge pump is constant current type, and is able to
change output current by serial data
0 Reference oscillation circuit is adopted circuit of bipolar,
so getting the stable X'tal oscillation circuit SSOP24-P-300-0.65A
Weight : 0.14g (Typ.)
0 Available standby control for receiver and transmitter
independent of each other
0 Small package .' SSOP24pin(0.65mm pitch)
Handle with care to prevent devices deterioration by static electricity.
1 2001-06-27
TOSHIBA TB31214FN
BLOCK DIAGRAM
MIX IN
. HI PVY , J 2nd L.OSC
l M--svv--h.
TX-OUT i.-"--
2 2001-06-27
TOSHIBA TB31214FN
PIN FUNCTION
PIN PIN FUNCTION INTERNAL EQUIVALENT CIRCUIT
No. NAME
1 TX OUT Output terminal of RF. C) C)
, . I TX VCC
2 BUF VCC Power supply of transmitter output, transmitter VCO. Ci) 'e, l,
3 TX VCC Power supply for transmitter PLL. E 7:
4 TX VCOB Base terminal of transistor for transmitter VCO. G) - K
5 TX VCOE Emitter terminal of transistor for transmitter VCO. Ci) 3.
6 TX GND GND terminal for transmitter. G) fff TX-GND
Output terminal of charge pump for transmitter.
7 CP1 It is constant current output type, and output current
is varied by input serial data.
8 DGND GND terminal of PLL.
9 X Input terminal of local oscillation. (i)) . - DVcc
IN In case of external input,connecting it to this terminal. l ''-"iii
3 l/ t
10 XOUT Output terminal of local oscillation. Ci) N l
11 BUF Output terminal of BUFFER AMP. The signal of local
oscillation is output through BUFFER AMP. O lkQ
11 Mv'
1: 1: 1: +
12 DVcc Power supply of PLL. Ci) - " DGND
3 2001-06-27
TOSHIBA
TB31214FN
PIN PIN
No. NAME FUNCTION INTERNAL EQUIVALENT CIRCUIT
Cie)-- RX Vcc
MIX output terminal.
13 IF OUT 8
For open collector output. 1: S
(ir-- MIX GND N
14 LD Output terminal of lock detector. H3
9 DGND
15 CK Input terminal of clock.
16 D Input terminal of data. Input the stri.al data
to controll this IC.
17 STB Input terminal of strobe signal.
Output terminal of charge pump for receiver.
18 CP2 It is constant current output type, and output current
is varied by input serial data.
19 RX GND GND terminal for receiver. RX Vcc
20 RX VCOE Emitter terminal of transistor for receiver VCO. s,
21 RX VCOB Base terminal of transistor for receiver VCO. l
(io) "
22 RX VCC Power supply for receiver. Ci) RX GND
(i))- CN.. ~ RX Vcc
23 MIX IN Input terminal of MIX. 7!
24 MIX GND GND terminal of MIX. 'il
MIX GND
TOSHIBA TB31214FN
DESCRIPTION OF FUNCTION AND OPERATION
l. Entry of serial data
It Serial data used to control the IC is input through three terminals, CK, D and STB.
C) During the rise of a clock pulse, data is fed to the shift register in the IC in order from
the LSB.
© Upon the reception of all data, the strobe signal (STB) is made "H".
(3 After the reception of a strobe signal (STB) of the "H" level, the data stored in the shift
register is transferred to the latch in the block selected by the group code, whereby the IC
is controlled.
(4) A counters start to operate after the reception of a strobe signal (STB) of the "L" level.
It The three terminal, CK, D and STB, contains Schmitt trigger circuits to prevent the data errors
by noise, etc.
C) Serial data group and group code
It The IC has control divided into four groups so that they may be controlled independent of
one another. Each group is identified by a 2bit group code attached at the data end.
CODE ITEM
10 Number of divisions by TX programmable divider
01 Number of divisions by RX programmable divider
11 Number of divisions by reference divider (XIN)
00 Optional control
C) Serial data input timing
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TOSHIBA TB31214FN
2. Programmable dividers (TX, RX)
It These programmable dividers are composed of a 5bit swallow counter (5bit programmable
divider), a 10bit programmable counter, and a two-modulars prescaler providing 64 and 66
divisions.
Swallow counter system is adopted to set high reference frequency.
Sending certain data to the swallow counter and the programmable counter allows the
setting of any of 1984 to 65534 divisions (multiple of two).
It The programmable counter and swallow counter are set by each channel. Each channel is
specified by a group code.
-lA0lA1lA2lA3lA4lD0lD1lD2lD3lD4lD5lDirlD7lD8lD9l I I
l l I l I I
Swallow counter : A Programmable counter : N "r,? codg
: "1 "
RX : "01"
A=A0+A1><21+A2x22+A3><23+A4x2‘1
N=D0+D1x21+D2x22+D3x23+ ..... +D9x29
Number of divisions=2 (32N +A)
1984 s Number of divisions s 65534
3. Reference divider
o This block generates the reference frequency for the PLL.
o The reference divider is composed of a 11bit reference divider and a half fixed divider.
0 Sending certain data to the reference divider allows the setting of any of 6 to 4094 divisions
(multiple of two).
-lD0lD1lD2lD3lD4lD5lD6lD7lD8lD9lD10l 1 I 1|
I I I I
Reference divider : D Group code
D=DO+D1x21+D2x22+D3x23 ..... +D10x21O
Number of divisions=2D
6 s Number of divisions s 4094
6 2001-06-27
TOSHIBA
The example of setting number of divisions
In case of
Reference frequency : 21.25MH2
Start VCO frequency : 380.2125MH2
Channel step : 12.5KHz
C) Set up phase comparator frequency
TB31214FN
Since a programmable divider is multiple of two, phase comparator frequency is set a half of
frequency step.
Phase comparator frequency = (12.5 x103 .= 2) = 6.25KHz
C) Set up programmable divider divisions
380.2125x106:-(12.5x103 =.2) = 60834
60834-- 2 (32N +A)
N =950 A = 17
C) Set up reference divider divisions
21.25x106:-(12.5x103:-2)=3400
2D=3400
D=1700
4. Optional control
0 The optional control below is available.
C) Test mode (Usually set up T1=T2 = "0").
© Control of the charge pump output current for each channel.
(3) Output terminal for Lock detector.
(if) Standby control of each channel.
"l T1 I T2 ltcPT1lcPT2lLD1lLD2lsirrlcPR1lcPRal * I * |SBR| o l o I
I I I I l I I I I I I I I I
Test Charge pump Lock Standby Charge pump Meaningless Standby Group code
mode output current (TX) detector (TX) output current(RX) bits (RX)
T1, T2 : Bit for test mode
CPT1, 2 : Switchover bit for charge pump output current(TX)
CPR1, 2 : Switchover bit for charge pump output current(RX)
LD1, 2 : Control bit for lock detector output
SBT, SBR : Standby control bit(TX, RX)
* : Disregard any data (Meaningless bits)
TOSHIBA TB31214FN
0 Description of options including their control
C) Test mode (T1, T2)
Bit "TI, T2" is for test mode. In other than the test mode, set this bit at "o".
© Control of charge pump output current (CPT, CPR)
This IC uses a constant current output type charge pump circuit. Output current is varied
by controlling "CPTI,2, CPR1,2".
CHARGE PUMP OUTPUT CURRENT
CONTROL BIT CHARGE PUMP . . . . .
CPT1 CPT2 OUTPUT CURRENT High speed lock up IS possible by switching
charge pump output current.
0 0 iOpA
o 1 i'1OO/JA
1 o iZOOpA
1 1 "-'400PA
(Note) CPR is the similar way
(3) Lock detector output
When phase comparator detects phase difference, LD terminal (pin 14) outputs "H". When
phase comparator locks, LD terminal outputs "L". On standby, outputs "L".
LD terminal output is controlled by "SBT", "SBR", "LDI" and "LD2".
LD terminal output is open drain output.
© Standby control (SBT, SBR)
CONTROL BIT LOCK DETECTOR
LD1 LD2 OUTPUT STATE
0 0 H On unlock = "H"
0 1 TX Only detect On lock = "L''
1 o RX Only detect On Standby = "L''
1 1 TX* RX -eLogical multiply (AND) of TX, RX
Available standby control for receiver and transmitter independent of each other.
CONTROL BIT STATE
SBT SBR TX RX REF
0 0 ON ON ON
0 1 ON OFF
1 0 OFF ON
1 1 OFF OFF
TOSHIBA TB31214FN
5. Reference frequency oscillation circuit and buffer amplifier
This IC has a stable oscillation circuit composed of bipolar.
In case of inputting the external reference frequency directly, use XIN terminal (pin 9).
For the common use of X'tal of the reference frequency oscillation circuit for the PLL and X'tal of
local oscillation to 2'nd MIX, output terminal of local oscillation signal with buffer amplifier (pin11)
may be used.
9 2001-06-27
TOSHIBA TB31214FN
MAXIMUM RATINGS (Ta = 25°C)
CHARACTERISTIC SYMBOL RATING UNIT
Power Supply Voltage VCC 6 V
Power Dissipation PD 780 mW
Operating Temperature Top, - 30--85 °C
Storage Temperature Tstg - 55--150 "C
ELECTRICAL CHARACTERISTICS (Unless otherwise specified, Ta =25°C, Vcc=2.2V)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Operating Power V Ta = - 30-- + 85°C 2.0 2.2 5.5 V
Supply Voltage CC Ta = - Io-- +85°C 1.9 2.2 5.5
Operating Power
I 1 TX RX-- N V E - 1 22 A
Supply Current CCO ' 0 (Open CO ) 6 m
Waiting Current -
Consumption Iccs 1 TX, RX - OFF 950 1300 pA
(RX) FRXin 4 VRXin = 93dB/A/ el 200 - 400
Input Frequency (TX) FTXin 4 VTXin =93dBpV sl 200 - 400 MHz
. . . (RX) VRXin 4 FRXin = 200~400MH2 sl 93 - 107
Input Sensitivity (TX) VTXin 4 FTXin = 200~400MH2 sl 93 - 107 dB/A/
Charge Pump
I 2 V = 1.1V - i - A
Output Current 1 CPI CP 0 ’a
Charge Pump
I 2 V = . - i1 - A
Output Current 2 CP2 CP 1 IV 00 /1
Charge Pump - +
Output Current 3 ICP? 2 VCP_1'1V '200 pA
Charge Pump - +
Output Current 4 lCP4 2 Vcp=1.IV - ”400 - PA
Charge Pump -
OFF Leak Current ICPOFF 2 VCP-- 1.1V, Standby mode 1 - +1 PA
CK Input Frequency FCK - - - - 1.0 MHz
(H) VIH CK, DATA, STB each terminal x sb','. VCC 5.7
Input Voltage - CC 0 2 V
(L) VIL CK, DATA, STB each terminal - 0.2 0 .
CK, DATA, STB each terminal
(H) 'IH - - 1
In ut Current VIH = 6V A
p (L) I CK, DATA, STB each terminal - - 1 ’u
IL VIL = 6V
LD Terminal " "
Resistance ON RLD 3 LD - L - 500 - n
LD Terminal I - - -1 - +1 A
OFF Leak Current LDOFF "
10 2001-06-27
TOSHIBA TB31214FN
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
XIN Operating inn 5 l/Xin = 105dBpN Sin-wave 5 21.25 25 MHz
Frequency
XIN Input Level vxin 5 FXin=21.25MHz 102 105 112 dpr
1st MIX
Operating Input FMIX 6 - 200 - 400 MHz
Frequency
MIX Conversion Gain GVMIX 6 Input 500, Load : Output 7500 15 18 22 dB
3rd Intercept Point 1P3 - - - 108 - dB/N
1dB Compression Level 1dBCP 6 - - 99 - dB/A/
REFERENCE VALUE
Input/output resistance, input/output capacitance (Typ.)
PIN No. PIN NAME RESISTANCE (fl) CAPACITANCE (pF)
23 MIX IN 620 3.1
13 IF OUT 11K 2.5
RECEIVER VCO
Operating Frequency FRVCO - - 200 - 400 MHz
C/N Characteristic CNR - PLL loop shaping " - 72 - dB
TRANSMITTER VCO
Operating Frequency FTVCO - - 200 - 400 MHz
C/N Characteristic CNT - PLL loop shaping " - 72 - dB
*1 : In case of input 509 from VCOE terminal
" : Detuning frequency=12.5kHz, Band range=8kHz
*3 : Use for operating TX VCC-PLL VCC: RX VCC-PLL VCC is within 10.2V.
11 2001-06-27
TOSHIBA TB31214FN
TEST CIRCUIT
l. lcco, k:cs 2. ICP
24 (,1) (ily,
3. RLD 4. VTXIN, VXIN
ILD COUNTER
9 RLD--VLD/ILD
LD CL/D Measured at LD="L"
5. VXIN 6. GVMIX
10.00pF FET
VCC 13 Probe
I u. C) '
Iii a e0 g, g,» i'.'
0 u, u, F _
C 14 COUNTER g g Vcc
T, g 8
fMix fLosc
12 2001-06-27
TOSHIBA
TB31214FN
CURRENT CONSUMPTION
(dB/xV)
TX INPUT SENSITIVITY VTXIN
(d8 ,uV)
TX INPUT SENSITIVITY VTXIN
Icco - vcc CHARACTERISTICS
Both ch ON
_,.----'"''''"
e.--''''''''
w..-''''"
-.-------"
/ Both ch OFF
----'-
--------"
0 2 4 6 8
POWER SUPPLY VOLTAGE Vcc (V)
VTXIN - fTXIN CHARACTERISTICS
0 200 400 600 800
INPUTFREQUENCY fo'N (MHz)
VTXIN - VCC CHARACTERISTICS
Vcc=2.2V
fTXIN =400MHZ
N = 50000 dividing
0 1 2 3 4 5 6
POWER SUPPLY VOLTAGE Vcc (V)
REF INPUT SENSITIVITY VXIN
RX INPUT SENSITIVITY VRXIN (dspv)
(dBIuV)
TX INPUT SENSITIVITY VTXIN
VXIN - fXIN CHARACTERISTICS
10 20 30 40 50 60
INPUTFREQUENCY fXIN (MHz)
VRXIN - fRXIN CHARACTERISTICS
200 400 600 800
INPUTFREQUENCY fRXIN (MHz)
VTXIN - Vcc CHARACTERISTICS
Vcc= 2.2V
fTXIN =200MHZ
N = 50000 dividing
1 2 3 4 5 6
POWER SUPPLY VOLTAGE Vc (V)
TOSHIBA TB31214FN
800 ICP - Vcc CHARACTERISTICS 0 ICP - Vcc CHARACTERISTICS
'0’ (11A)
ICP (,uA)
200 - 600
CHARGE PUMP OUTPUT CURRENT
CHARGE PUMP OUTPUT CURRENT
O -800
0 1 2 3 4 5 6 0 1 2 3 4 5 6
POWER SUPPLY VOLTAGE vcc (V) POWER SUPPLY VOLTAGE Vcc (V)
800 ICP - VCP CHARACTERISTICS) 0 ICP - VCP CHARACTERISTICS(RX)
200 - 600
CHARGE PUMP OUTPUT CURRENT
CHARGE PUMP OUTPUT CURRENT
0 -800
0 0.4 0.8 1.2 1.6 20. 2.4 0 0.4 0.8 1.2 1.6 2.0 2.4
CHARGE PUMP VOLTAGE ch (V) CHARGE PUMP VOLTAGE ch (V)
800 ICP - Ta CHARACTERISTICS(Nch) ICP - Ta CHARACTERISTICS)
fs VCC--2QV g,
m ch=1.0V a
Measure to CP1
600 - 200
400 - 400
CHARGE PUMP OUTPUT CURRENT
CHARGE PUMP OUTPUT CURRENT
200 - 600
Vcc = 2.2V
ch = 1.0V
Measure to CP1
0 - 800
- 40 - 20 O 20 40 60 80 - 40 - 20 0 20 40 60 80
TEMPERATURE Ta (°C) TEMPERATURE Ta (°C)
14 2001-06-27
TOSHIBA
TB31214FN
MIXER OUTPUT LEVEL (dB/xv) MIXER CONVERSION GAIN Gvc (dB)
LD SINK CURRENT ILD (mA)
GVC - Vcc CHARACTERISTICS
POWER SUPPLY VOLTAGE VCC (V)
VCC-- 2.2V
fiwx=380.7MHz
VMIX = SOdBpV
fLOSC = 359.0MH2
VLOSC =107dBtrV
MIXER CONVERSION GAIN -
MIXER INPUT LEVEL VMIX (dBpV)
LD TERMINAL OUTPUT CHARACTERISTICS
MIXER INPUT LEVEL
Vcc = 2.2V
hwx = 380.7MH2
fLOSC = 359.0MHZ
107dBpV
ldB COMPRESSION
--99dBpzV
40 60 80
0.8 12 1.6
LD TERMINAL VLD (V)
MlXER CONVERSION GAIN GVC (dB)
MIXER OUTPUT LEVEL (dB/xV)
GVC - LOCAL OSC LEVEL CHARACTERISTICS
0 20 40 60 80 100 120
LOCAL INPUT LEVEL (dB/xV)
MIXER INTERCEPT POINT
vcc=2.2v
fMIX = 380.7125MHZ
380.7250MHZ
fLOSC = 359.0MHZ
20 40 so 80 100 120 140
MIXER INPUT LEVEL VMIX (dB/zV)
TOSHIBA TB31214FN
APPLICATION CIRCUIT
sr.? fvco=358.5125MHz
ISV270 w 3_3nF . G
u. .-,.,-1sh2i'-"-'.i3neF-i-, Cl
Jr" IOP?. 0.1pF ' it,'
- -n-NVV-o F C
MIX IN 47kQ -o- x
-imt-. 3
1509 3.3nF gs "he. 2nd
't I LL _W_._“_. CPU ' / . MIXER
'- + "3 7pF 12pF F 27 F IF--
}\_..__.._ l p
r\ r\ p'Ch
I?...' 23 \2; 21 20 \19 ly 17STB 16D 15 CK 14LD F, o T
MIX GND MIX IN RX Vcc U
Buffer
TX OUT BUF Vcc TX ycc VCOB VCOE TX GND CP1 DGND xlN BUF DVCC
(j..) CF, (P,' 4 \5/ 'W' 'O..) Gh, 11 12
r 7pF 12pF 68pF
'---o- U.
+ + LL 3900 3 3nF X't I g +
(i-iiij),lj)'i'/',,sT,r,-oa'v"--""i,)',"k-n- a:leIl'
m M 47km I
6 F Cs 2nd LOSC
10pr, 8n . s “l 'k
u, .- m o
I 'k - un
'- m .. "A 1.1kQ 3.3nF
TX OUT c:._"p_ a
$1: 5.1m if fvco=254.8625MHz
“go MOD-IN
Hand set of coldless phone VCC=2-2 [V]constant
16 2001-06-27
TOSHIBA TB31214FN
PACKAGE DIMENSIONS
SSOP24-P-300-0.65A UNIT: mm
24 13 -
RflRflRflRRRfWI d Ti
fi?, 9.
'leap'' 'iieelfe1lij.,.......,.,.,..e..,,'......,...,..,e,e..,
1 l 12
0.325TYP =IF0.22:0.1 c 0.13
" 8.3MAX =
_ 73:02 =
G! Mt LO
er < "-C2.
tl" E R
'iaggggggggggi: ty,,' SI gm jE
------'=h' 'r'
tii' I l th45kth2
Weight : 0.14g (Typ.)
17 2001-06-27
TOSHIBA TB31214FN
RESTRICTIONS ON PRODUCT USE
000707EBA
OTOSHIBA is continually working to improve the quality and reliability of its products.
Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent
electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer,
when utilizing TOSHIBA products, to comply with the standards of safety in making a safe
design for the entire system, and to avoid situations in which a malfunction or failure of such
TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified
operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please
keep in mind the precautions and conditions set forth in the "Handling Guide for
Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc..
OThe TOSHIBA products listed in this document are intended for usage in general electronics
applications (computer, personal equipment, office equipment, measuring equipment, industrial
robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor
warranted for usage in equipment that requires extraordinarily high quality and/or reliability or
a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended
Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship
instruments, transportation instruments, traffic signal instruments, combustion control
instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA
products listed in this document shall be made at the customer's own risk.
0 The products described in this document are subject to the foreign exchange and foreign trade
OThe information contained herein is presented only as a guide for the applications of our
products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of
intellectual property or other rights of the third parties which may result from its use. No
license is granted by implication or otherwise under any intellectual property or other rights of
TOSHIBA CORPORATION or others.
0 The information contained herein is subject to change without notice.
18 2001-06-27
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