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TB31242FNTOSHIBAN/a2000avaiPhase Lock Loop


TB31242FN ,Phase Lock LoopFEATURESOperating frequencyCurrent consumptionOperating voltage range :Battery save supportedCompac ..
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TB31242FN
Phase Lock Loop
TOSHIBA TB31242FN
TOSHIBA Bi-CMOS INTEGRATED CIRCUIT SILICON MONOLITHIC
TB3M242FN
1.8 GHz Single PLL Frequency Synthesizer
TB31242FN is a PLL frequency synthesizer used for
application of the digital mobile communication.
FEATURES
0 Operating frequency : 700 to 1800 MHz
It Current consumption : 4.8 mA (Typ.)
0 Operating voltage range : 2.4V to 3.5V
0 Battery save supported
It Compact package : 10-pin SSOP
SSOP10-P-0.65
BLOCK DIAGRAM Weight : 0.04g (Typ.)
VCC TCXO
4ft); e; o 6
LPF Charge
pum p Ref. Div.
comparator
N IA Div.
Prescaler
1 /64, 65 Serial data decoder
FIN CLK DATA STB
Cm>—- 6
1 2002-03-29
TOSHIBA
PIN FUNCTION (All resistance and capacitance values in the table below are typical.)
TB31242FN
Kl'g' PIN NAME FUNCTION INTERNAL EQUIVALENT CIRCUIT
4 s' ( c
, 1kQ s 1 I 1‘
1 FIN Prescaler input terminal. Inputs frequency C) "I
from VCO. " La
2 GND Ground terminal -
3 CLK Clock input terminal 1kQ
4 DATA Data input terminal 3
5 STB Strobe input terminal
9 BS Battery save terminal N--3,4,5,9 GND
6 XIN Reference oscillator input terminal 8
7 VCC Supply voltage terminal -
Lock detect output terminal. Open drain 1m
output. 9
8 LD Locked : Open li,
Unlocked : Low
Power down : Open GND
10 CP Charge pump output terminal. Constant
current output.
2 2002-03-29
TOSHIBA TB31242FN
DESCRIPTION OF FUNCTIONS AND OPERATION
(1) Serial data control
TB31242FN operates according to the serial data program. Serial data is input from the clock
terminal (CLK), data terminal (DATA), and strobe terminal (STB).
(2) Entry of serial data
0 At the rising edge of the clock pulse, data is sent to the internal shift register from the LSB
sequentially. When all the data is sent, set the strobe terminal to high. At this rising edge, data
is stored in latches depending on the control contents. At the same time as data is stored,
control starts. Phase comparing starts with the falling edge of the strobe terminal.
0 The clock, data, and strobe terminal contain the Schmitt trigger circuit to prevent the data errors
by noise, etc.
0 At power on, send the reference divider data before the programmable divider data.
(3) Serial data input timing
(4) Programmable divider data
0 Consist of a 6-bit swallow counter (programmable counter), an 11-bit programmable counter, a
1/64, 1/65 two modulus prescaler.
o By sending any data to the swallow counter and programmable counter, number of division can
be set from 4032 to 131071.
4zsl0lA0lA1lA2lA3lA4lAslD0lD1lD2lD3lD4lDslrotilD7lD8lD9lD10lsisl 1|
Swallow counter : A Programmable counter : N
Number of division = 64N +A
A=A0+A1x21 .... +A5x25 A .' Value of A counter (remainder)
N=D0+D1x21 .... +D10x210 N : Value of N counter (quotient)
4032S number of divisions 131071
3 2002-03-29
TOSHIBA TB31242FN
(5) Reference divider data
4al0lD.0lD1lD2lD3lD4lDslro6lD7lD8lD9lD10lD.11lsBxl0l
Reference counter
D=D0+D1x21 .... +D9><29+D10x210+D11x211
4S number of divisionS4095
(6) Battery save status
TB31242FN's battery save status can be controlled by the external BS terminal and serial data.
Battery save status has two modes: power down and standby.
In power down mode, all circuits in IC are off.
In standby mode, PLLs are off, and only the TCXO buffer is on.
Logic is as listed in the table below. As power on, set the SB and SBX bits at the same time as
setting the dividers.
Battery save status
BS PIN SB BIT SBX BIT PLL TCXO BUFFER STATUS
L - 0 OFF OFF Power down
L - 1 OFF ON Standby
H 0 0 OFF OFF Power down
H 0 1 OFF ON Standby
H 1 0 ON ON In operation
H 1 1 ON ON In operation
ON : In operation, OFF : Power down (No operation)
(7) Lock detection
When the phase difference (time converted) is within one count of the TCXO, the lock detect
output timer starts. After seven counts of phase comparing, LD output becomes high (lock signal).
When the phase difference (time converted) exceeds one count of the TCXO, LD output becomes
low (unlock signal).
4 2002-03-29
TOSHIBA TB31242FN
MAXIMUM RATINGS (Ta = 25°C)
CHARACTERISTIC SYMBOL RATING UNIT
Power supply voltage VCC 4 V
Power dissipation PD 240 mW
Input terminal voltage VIN -0.5--4 V
Operating temperature Topr -40--85 "C
Storage temperature Tstg - 55-150 °C
ELECTRICAL CHARACTERISTICS (Unless otherwise stated, Vcc=3.0V, Ta =25°C)
CHARACTERISTIC SYMBOL CIRC TEST CONDITION MIN. TYP. MAX. UNIT
Operating power
Vcc - - 2.4 3.0 3.5 v
supply voltage
Current censumption 1 Icco1 1 All circuits in operation - 4.8 6.5 mA
at operation
Current censumption 2 Iccoz 1 Standby mode - 0.2 0.6 mA
at operation
aCErgnt consumption Iccq 1 Power down mode - 0 10 pA
Operating frequency FIN 2 VFiN--92dBpV 700 - 1800 MHz
FIN input sensitivity VFIN 2 FIN =700--1800MHz 92 - 107 dB/A/
Reference operating
frequency XIN 2 1/xiN--92dBp1/ 5 - 25 MHz
Reference input
sensitivity VXIN 2 NN=5 25MHz 92 - 112 dB/A/
CLK input frequency FCLK - 1 - 2000 kHz
Charge pump output -
current Icp 1 Va: - 1 /2VCC - 1.8 - mA
Charge pump off leak -
current ICP (OFF) 1 Vcp=0 VCC -0.1 0 0.1 pA
"H" level input voltage VIH - BS, CLK, DATA, STB (1):: Vcc 4.0 V
" " . 0.2x
L level input voltage VIL - BS, CLK, DATA, STB -0.2 0 VCC V
LD terminal off leak
current ILD 1 VLD_3.5v -1 o 1 PA
LD terminal on
R 1 - - 11 - n
resistance LD 00
5 2002-03-29
TOSHIBA
TEST CIRCUIT DIAGRAM 1
. s, 14.4M Hz
Control signal u. 'k m
f t' Vcc 1 g 111ngv
ch1 Vld fe, o "a
10 G/ 'db' Uv' e;
CP BS LD Vcc XIN
FIN GND CLK DATA STB
1 f?, cs A
Control signal
TEST CIRCUIT DIAGRAM 2
. tt o tr,
Control signal VCC -- N g
. N '- u.
FIN GND CLK DATA STB
'i')ii)oi'')
Control signal
1000pF
Notes : E- and -9 in the circuits indicate control signals.
o- indicates a test pin.
TB31242FN
In test circuit diagram l, unless measuring the current consumption, pin 6 is open.
CURRENT CONSUMPTION
CURRENT CONSUMPT1ON
(dB/_/V)
NPUT SENSITIVITY
TOSHIBA
SUPPLY VOLTAGE - CURRENT
CONSUMPTION 1 (all circuits on)
0.0 2.0 4.0 6.0 8.0
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE - CURRENT
CONSUMPTION 3 (power down mode)
0.0 2.0 4.0 6.0 8.0
- 40°C, 25°C, 80°C
SUPPLY VOLTAGE (V)
XIN INPUT SENSlTlVlTY TEMPERATURE
CHARACTERISTICS Vcc = 2.4V
1 10 100 1000
INPUT FREQUENCY (MHz)
CURRENT CONSUMPTION
(dB/JV)
INPUT SENSITIVITY
(dB/JV)
INPUT SENSITIVITY
TB31242FN
SUPPLY VOLTAGE - CURRENT
CONSUMPTION 2 (standby mode)
-40''C /
2.500 I /
2.000 //
1.500 // \::::_
1,000 g/je'
0.0 2.0 4.0 6.0 8.0
SUPPLY VOLTAGE (V)
FIN INPUT SENSlTlVlTY TEMPERATURE
CHARACTERISTICS Vcc= 2.4V
0 500 1000 1500 2000 2500 3000
INPUT FREQUENCY (MHz)
FIN INPUT SENSlTlVlTY TEMPERATURE
CHARACTERISTICS Vcc = 3.0V
- 40°C
50.0 80°C
0 500 1000 1500 2000 2 500 3000
INPUT FREQUENCY (MHz)
TOSHIBA
(dB/xV)
INPUT SENSITIVITY
CHARGE PUMP OUTPUT CURRENT
Xin INPUT SENSlTlVlTY TEMPERATURE
CHARACTERISTICS Vcc = 3.0V
1 10 100 1000
INPUT FREQUENCY (MHz)
SUPPPLY VOLTAGE - CHARGE PUMP 1
TEMPERATURE CHARACTERISTICS (Nch)
.,.,eLc---C.'.C,
..---"
2000 ec:rccrrir-i-s-ri"
_ ICC--" ..---
tCC.....,..---- -400C
1.500 /[/
1.000 //
0500 I
V ---v
fl cp 2 CC
1.0 2.0 3.0 4.0 5.0 6.0 7.0
SUPPLY VOLTAGE (V)
CHARGE PUMP OUTPUT CURRENT
TB31242FN
SUPPLY VOLTAGE - CHARGE PUMP 1
TEMPERATURE CHARACTERISTICS (Pch)
80''C ....--
2.000 _--...
..---" -------"CEoc
----''- o
-..---" - 40 C
1.500 "
V = - V
g cp 2 CC
1.0 2.0 3.0 4.0 5.0 6.0 7.0
SUPPLY VOLTAGE (V)
TOSHIBA TB31242FN
PACKAGE DIMENSIONS
SSOP10-P-0.65 Unit : mm
th55TYP,
015 -035
l 0.45i0.2
Weight : 0.04g (Typ.)
9 2002-03-29
TOSHIBA TB31242FN
RESTRICTIONS ON PRODUCT USE
000707EDA
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 products described in this document contain components made in the United States and
subject to export control of the U.S. authorities. Diversion contrary to the U.S. law is
prohibited.
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.
10 2002-03-29
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