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TDA7333N , RDS/RBDS processor
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TC9242P
QUARTZ PLL MOTOR CONTROL
TOSHIBA
TOSHIBA BIPOLAR DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC
TC9242P, TC9242F
QUARTZ PLL MOTOR CONTROL
The TC9242P, TC9242F are CMOS LSIs developed for
controlling the motor speed.
Since an 8bit D/A converter system has been employed
for each of the speed control system (AFC) and the phase
control system (APC).
Offers improved linearity.
With frequency division ratios of 1/3, 1/4 and 1/5 the
standard divider is ideal for laser scanner motors.
FEATURES
Crystal can be used up to 20MHz, and crystal reference
dividing frequency is selectable from three positions of
1/3,1/4 and 1/5.
Lock range can be selected from two positions of 1/20
and 1/27.
External oscillator makes possible fine adjustment of
speed.
Lock detection output and reverse rotation signaloutput
are provided.
Package is DIP16PlN and SOP16PIN.
PIN CONNECTIONS (TOP VIEW)
TC9242 P/F
TC9242P
DlP16-P-300-2.54A
TC9242F
SOP16-P-300-1.27
Weight
DIP16-P-300-2.54A : 1.009 (Typ.)
SOP16-P-300-1.27 : 0.169 (Typ.)
GND Juno
x-, UCPOUT
XT UCPIN
N1 'TEST
N2 ILD
FGlN IR/S
APC EIN/w
AFC TRu
1 2001-06-19
TOSHIBA
BLOCK DIAGRAM
XT XT N 1
CRYSTAL
RfOSCILLATOR
SCHMITT
CIRCUIT
AMPLIFIER
SCH MITT INPUT
N2 CP UT
CRYSTAL REFER-
SYNCHRO-
CIRCUIT
N/W TEST LD VDD GND
CONVERTER
SENSING
CIRCUIT
AFC TIMING
DIVIDER
(12bit)
CONVERTER
20 or 27
DIVIDER
DIVIDER
FUNCTIONAL EXPLANATION OF EACH TERMINAL
TC9242 P/F
PIN No. SYMBOL PIN NAME FUNCTIONAL & OPERATION EXPLANATION REMARKS
16 VDD Power Terminal VDD-- 5V , 0.5V is applied. -
1 GND Ground Terminal Ground -
2 XT Crystal Oscillation . . With a built-in
. Crystal oscillator IS connected. feedback
Terminal .
3 XT resustor.
R f Di . . . . . . . .
4 N1 e erence N.Idec.‘ Switching of divided frequency from the crystal reference With a built-in
Frequency Switching fr n di id r int 1/3 1/4 nd1/5i ibl ll r . t r
5 N2 Terminal eque cy IVl e I o ' a IS possn e. pu up esus o .
6 FGIN FG Pulse Input Terminal Input terminal for pulse showing motor speed. "z/l,'?,',),),','."""
7 APC APC Output Terminal Outpot terminal for motor phase control system. Output With a built-in
of Mit D/A converter. buffer.
8 AFC AFC Output Terminal Outpot terminal for motor speed control system. Output With a built-in
of Mit D/A converter. buffer.
9 RV lever.se Signal Output Terminal for motor reverse signal output. CMOS OUTPUT
Terminal
10 N/W Lock range Switching Terminal for switching motor speed. With a built-in
Terminal L=1/27, H or NC=1/20. puII-up resistor.
RUN/STOP Input Motor RUN/STOP signal input terminal L=RUN, H or With a built-in
11 R/S . .
Terminal NC=STOP puII-up resistor.
12 LD Lock Detecting Terminal Th/s. 1ermlnal becomes H when 1htyetor speed IS CMOS OUTPUT
within the lock range and otherwise L .
14 CP Reference Frequency Normally connected to CPOUT. For external fine CMOS SCHMITT
IN Input Terminal adjustment input from an external oscillator. INPUT
Reference Frequency Terminal for divided output from the crystal reference
15 CP . . . CMOS OUTPUT
OUT Output Terminal frequency divider. Normally connected to CPIN.
Output Terminal for .
13 TEST INTERNAL TEST Output terminal for INTERNAL TEST. Generally open. -
2001 -06-1 9
TOSHIBA TC9242P/F
EXPLANATION OF OPERATION
Crystal Oscillation Terminals (XTITT)
o The crystal oscillator is used by connecting as shown below.
E ur' X'tal o-' . . .
E g g yd. CL of 10~30pF IS appropriate.
0 Crystal oscillation frequency is calculated by the following equation according to number of
FG pulses of a motor to be used.
fx-- Ex FG'x128x (20 or 27) xN (Hz)
Note : (20 or 27) : 20 at N/W="H" or NC
27 at N/W="L"
Further, fX: Crystal oscillation frequency, FG' : No. of FG pulses generated per revolution of
motor.
N : Ratio of frequency division of the crystal reference frequency divider.
N=3, 4, 5 (Refer to Item 9.)
0 Maximum operating frequency is above 20MHz and crystals up to 20MHz can be used.
It If necessary, adjust Ro, Rs and CL to control noise from the crystal oscillator circuit or to
control overtone oscillation.
< Reference values>
Note : The values in the table are the
fXT(MHZ) Ro (0) Rs(f1) CL(pF) reference values. Determine the
20 - 220 22 values suitable for the
12 - 220 27 characteristics of the crystal used.
8 - 220 30 Note : When not using the crystal
4.5 2.2k - 30 oscillator circuit, always connect
1.5 4.7k - 30 pin 3 (XT) to GND as shown in
the diagram to overcome the
effects of noise and to reduce
current consumption.
3 2001-06-19
TOSHIBA TC9242P/F
2. Reference Frequency Input/Output Terminals (CPOUT: CPIN)
Divided outputhX from the crystal reference frequency divider is available at CPOUT, which
is normally connected to CPIN.
When an external oscillator (CR oscillator, etc.) is connected to CPIN, motor speed can be
finally adjusted.
If the effects of noise from CPIN input signal overshoot must be controlled, connect capacitor
C1 as in the following diagram.
'is? Cfi 100-
Note : When connecting capacitor C1, make lo-
sure that the input level of pin 14
(CPIN) does not fall blow the standard
(1hH20.8xVDD, 1/LS0.2xVDD) fce [MHz]
C1 [PF]
3. FG Pulse Input Terminal (FGIN)
This is the input terminal of FG pulse that shows the motor speed.
This FG pulse becomes comparison frequency.
This terminal has built-in Amplifier and Schmitt circuit.
FG pulses are applied through capacitor coupling and small amplitude is enough for proper
operation.
If there is noise in the FG signal, connect capacitor C2 as shown in the diagram to control
the noise.
Note : Determine the values of capacitors C1 and C2 after
FGIN checking their characteristics with fcp and fFG used.
C Tout 2,si9nal Note : When connecting capacitor C2, make sure that the
input level of pin 6 (FGIN) does not fall below the
standard (1/inFG2 Om/p-p)
4. Lock Range Switching Terminal (N/W)
This terminal is for switching the Lock range with a pull-up resistor and chattering preventive
circuit.
(TRUTH TABLE)
DIVIDED
N/W FREQUENCY LOCK RANGE
L L +3.4~ -3.9% of reference
27 cycle
-- - O
H or NC L +4.6 5.3% of reference
20 cycle
CAUTION reference frequency FS=fx/Nx (20 or 27) x128(Hz), FS'= F75
4 2001-06-19
TOSHIBA TC9242P/F
5. APC, AFC Output Terminal (APC, AFC)
0 AFC (speed control output) is a F-V converter for FG frequency and is consisting of a 8bit
D/A converter.
0 APC (phase control output) is a phase comparator (sb-l/ converter) that compares phase
difference fb between 1/2 FG and reference frequency FS', and is also consisting of a 8bit
D/A converter.
(ii) Buf. (ri) AFC/APC
r : STRING RESISTOR
R .' ANALOG SWITCH
0 Both APC and AFC perform the following 3 operations according to FGIN frequency.
a. When FGIN frequency is within the lock range:
Both APC and AFC perform the normal operation for FGIN.
b. When FGIN frequency is below the lock range (under speed):
APC and AFC outputs are both fixed at "H" level.
c. When FGIN frequency is above the lock range (over speed):
APC and AFC outputs are both fixed at "L'' level.
0 When a motor is in STOP state (P/S=H or NC), both AFC and APC are fixed "L" level.
AFC output change status for FGIN APC output change status for phase
frequency difference 75
Fixed at "H" Level
H I E D/A Output
t i g ii]
'd: l D/A Out - <
CD put CD at
o I F, tf
li-' i . " " o f?
I Fixed at L Level bl
0% 0 7t 27:
Under Speed Lock Range Over Speed Phase Difference ff
FGlN Frequency
5 2001-06-19
TOSHIBA TC9242P/F
It AFC and APC timing chart within lock range.
a. AFC (SPEED CONTROL SYSTEM)
:3“ 1 1 1
CLOCK "mm
LOAD , I ll
OUTPUT I
b. APC (PHASE CONTROL SYSTEM)
REFERENCE
FREQUENCY
FS' PULSE
1 ff ff 95
PULSE -| -|
APC I-"
OUTPUT l
AFC OUTPUT with in Lock Range
6. Lock Detecting Terminal (LD)
This terminal is the lock detecting output and is placed at "H" level when FGIN frequency is
within the lock range and otherwise, placed at "L" level.
7. RUN/STOP Input Terminal (R/S)
RUN/STOP signals of the motor are input to this terminal.
PLAY=L, STOP=H or NC.
This terminal has a pulI-up resistor and a chattering preventive circuit.
During RUN (R/S=L), AFC, APC and LD perform the above-mentioned operations for FGIN
frequency, and during STOP (R/S=H or NC), AFC, APC and LD are all fixed at "L" level.
6 2001-06-19
TOSHIBA TC9242P/F
8. Reverse Signal Output Terminal (RV)
0 Reverse signal for braking the motor at time of switching of Lock range from 1/20 to 1/27
or the operation from RUN to STOP is output through this terminal.
0 Change of RV output status
PREVIOUS diy RV 2yl1'y,,T CHANGE f d) RV 9yT,ylr CHANGE l
STATUS TO H LEVEL TO L LEVEL
During Normal When the Lock range is locked at
Rotation When the Lock range is switched 1/27, or When FGINS1/8FS, or
(During Lock) at from 1/20 to 1/27. when the Lock range is switched
1/20 from1/27 to1/20.
During Normal
When FGINs1/8FS or when the
operation is switched from STOP to
Rotation When the operation is switched
(During Lock) at from RUN to STOP.
1 /20 or 1 /27
o In other cases than above, RV output is not changed and fixed at "L" level.
0 Further, if FG frequency rises up to 1.5 times of normal rotation at 1/20 (2 times of normal
rotation at 1/27), RV output is reset.
9. Reference Divided Frequency Switching Terminal (N1, N2)
It Divided frequency 1/N of the crystal reference frequency divider can be switched to 1/5,
1/4 or 1/3 by number of FG pulses or a crystal used.
It This terminal has a built-in pull-up resistor.
(TRUTH TABLE)
N1 N2 1/N
H H 1/5
L H 1/4
H L 1/3
1/N : Crystal reference divided frequency
Note : Do not use N1=N2=L, which is used for internal test only.
7 2001-06-19
TOSHIBA TC9242P/F
MAXIMUM RATINGS (Ta =25°C)
CHARACTERISTIC SYMBOL RATING UNIT
Supply Voltage VDD -0.3--7.0 V
Input Voltage VIN -0.3--VDD + 0.3 V
Power Dissipation PD 300 mW
Operating Temperature Topr -40-85 "C
Storage Temperature Tstg -6r-150 "C
ELECTRICAL CHARACTERISTICS (Unless otherwise specified Ta =25°C, VDD=5V)
CHARACTERISTIC SYMBOL CIR- TEST CONDITIONS MIN. TYP. MAX. UNIT
Operating Supply Voltage VDD - .y.f 4.5 5.0 5.5 V
X'tal =20MHz
Operating Supply Current I 1 ' - 15.0 25.0 mA
DD CPin = CPout
Operating XT fXT 2 X 1.5 ' 20.0 MHz
Frequency CPin fcp 3 Vin Square Wave .)K. 0.3 -- 10.0 MHz
Range FGin fFG - Vin =0.5Vp-p Sine Wave .y.4. - _ 4.0 kHz
Input . .
f =4kH ' Sine Wa e, .yd.
Amplitude FGin VinFG 4 FG. Z I V 0.5 ._ VDD-0.5 Vp-p
AC input
Voltage
AFC, APC D/A Deviation - - - - A2.0 $4.0 LSB
Converter Resolution - - - - VDD/256 - V
Pull-up Resistor Rin - N1, N2, N/W, R/S 15 30 60 k0
"H" Level le N1, N2, N/W, R/S, CPin vDon.8 -- VDD
Input Voltage "L" Level VIL - N1, N2, N/W, R/S, cm 0 ~ vDon.2 V
'IH CPin
Input Leak Current - - - i 1.0 A
'IL CPin '
"H" Level IOH RV, LD, CPout VOH =4.5V -0.5 -2.5 -
"L" Level IOL - RV, LD, CPout VOL=0.5V 0.5 2.5 - mA
Output Current "H" Level IOH APC, AFC VOH =4.5V -0.3 - 1.0 -
"L" Level IOL - APC, AFC V0L=0.5V 25 75 - pA
Amplifier XT Rf 5 - 150 330 660 km
Feedback
Resistor FGin Rf 5 - 150 330 660 k0
.yd. : Guaranteed within the range of 1/DD=4.r-5.51/, Ta= -40--85oc
8 2001-06-19
TOSHIBA
TC9242 P/F
TEST CIRCUIT
1. Operating Supply Current IDD
14 (T5 ca (11; (ED a
VDD-- SV
)r,'i,"2,d,
"1/2iiii""(i)j7-'-i--c!'zivp-p
( 1kHz
g X'tal= 20MHz SG
3. CPIN Operating Frequency Range fMAX(fCP)
PG Monitor VIH--VDDX0.8V
V|L=VDDX0.2V
VDD=4.5~5.5V
iis)(iis)(D(i"3) 11®®
666@@6@6
2. XT Operating Frequency Range fMAX(fXT)
VDD-- 4. r- 5. 5V Synchroscope & frequency counter
C 66666666
VIN = 1-0Vp-p
4. FGIN Input Sensitivity VlNFG
Ci) " f
VDD = 4. 5-5. 5V
ty Monitor
}666666%6
Synchroscope
Artal= 4MHz fi4-)ss
vfil4-)
5. Amplifier Feedback Resistor Rf
VDD=5V
J] (ii) 'l, (L) (Q f) (ED a
(a) (3) (5) (E) 6 (1) ts.)
9 2001-06-19
TOSHIBA TC9242P/F
APPLICATION CIRCUIT
10kQ 62kQ
11 198
TA7259P, TA7259F (LB)
1234 567
It Example of crystal oscillation frequency calculation.
When FG' (number of FG pulse)-- 180 pulses and R (revolution of motor)=200rpm., if the
dividing frequency of reference divider and lock range is set at N=5 dividing frequency and
N/W=20, the crystal oscillation frequency fx is as follows :
fx =%xFG'x128x20xN= 2g0x180x128x20x5=vi8MHz
0 Select the external filter of the differential amplifier in the application circuit depending on the
response characteristics of the motor used.
It Determine values C1, C2, CL, Ro and Rs in the application circuit depending on the characteristics
of the circuit.
10 2001-06-19
TOSHIBA TC9242P/F
PACKAGE DIMENSIONS
DIP16-P-300-2.54A Unit : mm
[-1r'-'e1r-nF'--'1i-1l-1ei'-1
6.4:t0.2
V'-''-''''-'''-''
19.75MAX
19.25i0.2
03:51:01
0.735TYP . . i l 0.5i0.1_30'25 (ii)
Weight : 1.009 (Typ.)
11 2001-06-19
TOSHIBA
PACKAGE DIMENS
SOP16-P-300-
HHHHHHHH "
5 31:0 2
7.8i0.3
0.705TYP
10.8MAX
10.3:t0.2
tllllildtlleili,
l1 9MAX
Weight : 0.169 (Typ.)
o 15:02
tiitir'
TC9242 P/F
Unit : mm
(3 00 mil)
0.15”-1
0.8i0.2
2001 -06-1 9
TOSHIBA TC9242P/F
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.
13 2001-06-19
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