TA7628 ,AMPLIFIER SYSTEM FOR CASSETTE TAPE RECORDERFEATURESRecording Playback for Pre AmplifierBuffer Amplifier (Recording Amplifier)Power AmplifierAL ..
TA7628HP ,Amplifier System for Cassette Tape RecorderTA7628P/HP TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA7628P,TA7628HP Amplifi ..
TA7628P ,Amplifier System for Cassette Tape RecorderFeatures Recording playback for pre amplifier Buffer amplifier (recording amplifier) Power ..
TA7630P ,Bipolar Linear Integrated Circuit Silicon Monolithic Dual. Volume/Balance/Tone (Bass/Treble) DC Control ICTA7630P TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic TA7630P Dual. Volume/Balanc ..
TA7641BF ,350mA; V(cc): 6V; 0.2A; AM 1 chip radioTOSHIBA, ELECTRONIC ua otuvri'is? CIDNLIEEI 7 r02E 17463'Ah 1 CHIP RADIOThe TA7641BP is designed fe ..
TA7641BP ,750mA; V(cc): 6V; 0.2A; AM 1 chip radioTOSHIBA, ELECTRONIC ua otuvri'is? CIDNLIEEI 7 r02E 17463'Ah 1 CHIP RADIOThe TA7641BP is designed fe ..
TC551001BFL70L ,SILICON GATE CMOS 131,072 WORD x 8 BIT STATIC RAMfeatures with an operating current of 5mA/MHz (typ.) and a minimum cycle time of 70ns. When CE1 is ..
TC551001BFL-70L ,SILICON GATE CMOS 131,072 WORD x 8 BIT STATIC RAM TOSHIBATC551001BPL/BFL/BFTL/BTRL-70L/ ..
TC551001BFL-70L ,SILICON GATE CMOS 131,072 WORD x 8 BIT STATIC RAMfeatures with an operating current of 5mA/MHz (typ.) and a minimum cycle time of 70ns. When CE1 is ..
TC551001BFL-70L ,SILICON GATE CMOS 131,072 WORD x 8 BIT STATIC RAM TOSHIBATC551001BPL/BFL/BFTL/BTRL-70L/ ..
TC551001BFL-70L ,SILICON GATE CMOS 131,072 WORD x 8 BIT STATIC RAMFeatures• Low power dissipation: 27.5mW/MHz (typ.)• Standby current: 4m A (max.) at Ta = 25
TA7628
AMPLIFIER SYSTEM FOR CASSETTE TAPE RECORDER
TOSHIBA
TA7628P/HP
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA7628P, TA7628HP
AMPLIFIER SYSTEM FOR CASSETTE TAPE RECORDER
TA7628P and TA7628HP are Pre+Power amplifier system
designed for cassette tape recorder.
FEATURES
Recording Playback for Pre Amplifier
Buffer Amplifier (Recording Amplifier)
Power Amplifier
ALC Detector Circuit
Mutiny Circuit
Maximum Output Power (Vcc=6V, f=1kHz, THD=10%)
3 Pout=0.6W (Typ.) (RL=80) : TA7628P
: Pout=0-96W (Typ.) (RL=4Q) : TA7628HP
Low Distortion and Wide Dynamic Range
Without Turn-on "POP" for Muting Circuit
Operating Supply Voltage Range
: Vcc (opr) = 3.5~9v (Ta =25°o
BLOCK DIAGRAM
PRE PRE RE PRE
DlP16-P-300-2.54A
Weight : 1.00g (Typ.)
GND INPUT N.F OUTPUT FILTER II FILTER I Vcc STRAP
-tii) :49, (ri), f1; (i? ff
FILTER
PRE AMP.
_ BUFFER
+ AMP.
"s I Ctss cs I
-C) \2/ 2; ld.; \5/ 'dr'
ALC BUFFER BUFFER N.C POWER POWER POWER POWER
INPUT OUTPUT N.F (GND) INPUT
N.F GND OUTPUT
961001EBA2
O TOSHIBA is continually working to improve the quality and the 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 observe standards of safety, and to avoid situations in which a malfunction or failure of a TOSHIBA product 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 products specifications Also, please keep in mind the precautions and conditions set forth in the
TOSHIBA Semiconductor Reliability Handbook.
1997-07-07 1/12
TOSHIBA
TA7628P/HP
SWITCH OVER
TEST ITEM SW1 SW2 SW3 SW4 SW5 SW6
Guo1 1 1 ON OFF OFF OFF
GV1 1 1 OFF OFF OFF OFF
Vout1 1 1 OFF OFF OFF OFF
Gu2 1 3 OFF OFF OFF OFF
Vout2 1 3 OFF OFF OFF OFF
Vnoz 1 3 OFF OFF ON OFF
ALC 1 2 OFF OFF OFF OFF
Guo3 2 1 OFF ON OFF OFF
Gu3 2 1 OFF OFF OFF OFF
Pout 2 1 OFF OFF OFF OFF
Vno3 2 1 OFF OFF OFF ON
951001EBA2'
O The products described in this document are subject to foreign exchange and foreign trade control laws.
0 The information contained herein is presented only as a guide for the ap Iications of our products. No responsibility is assumed by TOSHIBA
CORPORATION for any infringements of intellectual property or other rights D the third parties which may result from its use. No license is granted
, implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others.
0 T e information contained herein is subject to change without notice.
1997-07-07 2/12
TOSHIBA TA7628P/HP
PRECAUTION FOR USE
Precaution of GND line .
The GND points of input side GND and NF side GND in each INPUTC) _ooumn
amplifier must be arranged at the preamplifier side. (Fig.1)
The input side GND point and the bl.F side GND point must 01 Lr-if
be arranged near each other to have no impedance. INPUTside GND
J power GND
N.F side GND
. About radiation
1) The capacitance between the output and GND in preamplifier, buffer amplifier gnd power
amplifier must be arranged near to this IC. The radiation loop must be as small as possible.
2) The voltage gain of high frequency in each amplifier must be reduced to reduce the noise with
high frequency component. (In the application circuit, the feed back capacitor is used)
A 1000pF or same order capacitor must be connected from the input terminal of preamplifier
and power amplifier to GND to prevent the interference of radiation.
3) It is better for this IC to separate adequately from the antenna in the radio cassette tape
recorder applications.
4) The electrolytic capacitance 100pF--220pF between VCC and GND must be arranged near to this
To prevent the oscillation
1) The output terminal of preamplifier must be terminated to GND by the capacitance more than
5600pF.
(The recommended value : C--0.01pF)
2) The output terminal of buffer amplifier must be terminated to GND by the capacitance more
than 0.01pF.
(The recommended value : C=0.01PF)
3) The output terminal of power amplifier must be terminated to GND by the good temperature
characteristic capacitance of 1--2.2pF. The bootstrap terminal must be terminated to GND with
the capacitance more than 0.47pF.
Precaution of preamplifier
1) It is better that the coupling capacitor between the volume and the output of preamplifier is
small.
Recommended value : C=0.47PF
2) In recording mode, the signal source resistance must be more than 1kQ for ALC (Automatic
Level Control) operation. When this resistance is small, the ALC range becomes narrow.
1997-07-07 3/12
TOSHIBA TA7628P/HP
5. Buffer amplifier
When the output signal is clipped in the buffer amplifier, this signal
returns to preamplifier and influences to make THD bad. a
To prevent this, in playback mode, the buffer amplifier is recommended Q
to be cut-off by terminating the output terminal to GND directly or by t + sw
terminating the feedback terminal to GND through 3300 or less than 2 l
this shown in Fig.2.
6. Power amplifier Fig.2
In case of the battery use (Vccs 6V), this IC is happen to oscillate
(blocking oscillation) when the impedance of power supply is high.
In this case, it is recommended to insert the resistance RA of
5000~1k0 between Opin and (Opin (Vcc-Filter II). By this
method, this IC becomes very stable. But the output DC voltage is
not center by the influence of RA. Then the output wave shape is
not symmetrical clipping wave and the maximum output voltage is
reduced. So we recommend to insert the other resistance RB between
©pin and .pin for compensating the output DC voltage.
When you use this IC at the supply voltage of more than 6V, it is
better to insert the resistance R3 for compensating output DC
voltage. (Fig.3)
The recommended value : RB=220kQ at Vcc=7.5v
(e =150kQ at VCC =9V
The output coupling capacitance and bootstrap capacitance is better
to be large because of getting the maximum output power.
On the PC board, the interval between VCC and GND is better to be
large.
MAXIMUM RATINGS (Ta = 25°C)
CHARACTERISTIC SYMBOL RATING UNIT
TA7628P 9
Supply Voltage TA7628HP VCC 12 V
TA7628P 0.56
Output Current TA7628HP Io (peak) 1.5 A
. . . TA7628P 750
Power Dissipation TA7628HP PD (Note) 1200 mW
Operating Temperature Topr - 20--75 °C
Storage Temperature Tstg - 55--150 °C
(Note) Derated above Ta=25°C in the proportion, 6.0mW/°C for TA7628P, 9.6mW/°C for
TA7628HP.
1997-07-07 4/12
TOSHIBA TA7628P/HP
ELECTRICAL CHARACTERISTICS (TA7628P) (Unless otherwise specified, VCC=6V, f=1kHz, Ta =25°C)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Quiescent Current 'CCQ(1) - Vcc=3.5V 7 - - mA
Quiescent Current 'CCQ(2) - Vcc=6V 9 - 36 mA
PRE AMP.
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Open Loop Voltage
Gain Gvo1 - - 55 70 - dB
Closed Loop Voltage
Gain Gv1 - - - 40 - dB
Maximum Output
Input Resistance RIN1 - - 24 30 - k0
Equivalent Input Noise . -
Voltage Vni - Rg--0 - 1.4 2.5 pl/rms
PRE AMP.+BUFFER AMP.
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Closed Loop Voltage Pre amp. GV=40dB
Gain Gv2 - Buffer amp. Gu=20dB - 60 - dB
Maximum Output - 0
Voltage Vout2 - THD=3% 1.5 1.7 - vrms
Output Noise Voltage Vno2 - Rg=0, Gv2 =60dB - 1.2 2.5 mVrms
V; =0.775mV (-60dBm)
AL Eff AL 1 - In rms - -
C ect C -0.0775Vrms (-20dBm) 2 dB
ALC Range ALC2 - Range of THDS 1% - 60 - dB
POWER AMP.
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Open Loop Voltage
Gain Gvo3 - - 60 70 - dB
Closed Loop Voltage
Gain Gv3 - - - 40 - dB
Output Power Pout - RL=8Q, THD.-.. 10% 0.5 0.6 - W
Output Noise Voltage Vn03 - Rg=0, GV=40dB - 0.3 1.0 mVrms
1997-07-07 5/12
TOSHIBA
TA7628P/HP
ELECTRICAL CHARACTERISTICS (TA7628HP) (Unless otherwise specified, Vcc=6V, f=1kHz, Ta =25°C)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Quiescent Current ICCQ (1) - Vcc=3.5V 7.5 - - mA
Quiescent Current Icco (2) - Vcc=6V 11 - 35 mA
PRE AMP.
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Open Loop Voltage
Gain Gvo1 - - 55 70 - dB
Clgsed Loop Voltage Gv1 - - - 40 - dB
Maximum Output - 0
Input Resistance RIN1 - - - 30 - k0
Equivalent Input Noise . -
Voltage an - Rg=0 - 1.4 2.5 pi/rms
PRE AMP.+BUFFER AMP.
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Closed Loop Voltage Pre amp. GV=40dB
Gain Gv2 - Buffer amp. Gu=20dB - 60 - dB
Maximum Output - 0
Voltage Vout2 - THD=3% 1.5 1.7 - Vrms
Output Noise Voltage Vno2 - Rg=0, Gv2 =60dB - 1.2 2.5 mVrms
V; =0.775mV (-60dBm)
ALC Eff t ALC1 - In rms - 2 - dB
ec ~o.o775vrms (-20dBm)
ALC Range ALC2 - Range of THDS 1% - 60 - dB
POWER AMP.
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Open Loop Voltage
Gain Gvog - - 60 70 - dB
Closed Loop Voltage
Gain Gv3 - - - 40 - dB
0 t t P P RL=4Q, THD=10% 0.8 0.96 - w
u pu ower out - vcc=9v, RL=80, THD= 10% - 1.4 -
Output Noise Voltage Vnog - Rg=0, Gv=40dB - 0.3 1.0 mVrms
1997-07-07 6/12
TOSHIBA
TA7628P/HP
TEST CIRCUIT
SW1-3 INTERLOCK (1, 2=OFF, 3=ON)
"-4' PRE
C} OUTPUT V
a, l IQ,
m + Fe +
e; "C.,i 11J.,b' 9
T A 7 6 2 8 P 3
fCh /'\ cs
1/ 'er' 3 4
(*) 560pF
._l c: 470pF(Note 2)
390m A: +" - ©POWER
o-NNN-_ : t OUTPUT
I 2, . LL
47 F BUFFER c? Cl
" ©OUTPUT o 5' a'
1 F 47 F
- f,", o LL -a’u+
7:5.6k0 2 t + g .is.l a
l '- " .2
SW N .. Cl o a T"
2 El :4 El P m
(*) Use in measuring the output noise voltage.
(Note 1) TA7628HP : th047PF -9 0.06ng
(Note 2) TA7628HP : 470PF -9 1000PF
1997-07-07 7/12
TOSHIBA
TA7628P/HP
V8, ICCQ - Vcc
TA7628HP
TA7628P
OUTPUT VOLTAGE V8
3 4 5 6 7 8 9
SUPPLY VOLTAGE VCC (V)
vs 'CCQ - Ta
OUTPUT VOLTAGE V8
- 20 0 20 40 60 80
AMBIENT TEMPERATURE Ta (°C)
Vout, THD - Vin
10 100
REC AMP.
5 Vcc=6V 50
3 f=1kHz ALC OFF Vout 30
VG=60dB
Ta =25°C
1 ALC ON Vout 10
0.05 - - 0.5
O,03 ALC ON THD 0.3
OUTPUT VOLTAGE vout (vms)
ALC OFF THD
0.1 0.3 0.5 1 300 500
30 50 100
INPUT VOLTAGE Vin (mVrms)
QUIESCENT CURRENT
QUIESCENT CURRENT
TOTAL HARMONIC DISTORTION THD (%)
TOTAL HARMONIC DISTORTION THD
VOLTAGE GAIN Gvo, GV
VOLTAGE GAIN GV (dB)
THD - Vout
PRE AMP.
VCC = 6V
Ta = 25°C
05 f=10kHz
100Hz 1kHz
0.02 0.05 0.1 0.3 0.5 1 2
OUTPUT VOLTAGE Vout (vrms)
PRE AMP. Gvo
Vcc = 6V
Ta = 25''C
10 30 100 300 1k 3k 10k 30k 100k
FREQUENCY f (Hz)
330k0 OUT
100 PLAY AMP. (RL--4Q)
PRE AMP.
EQUALIZER
ZZOkQZZ/‘F E
REC AMP.
VCC = 6V
Ta = 25°C
10 30 50 100
300500 1k 3k 5k 10k 30k50k100k
FREQUENCY f (Hz)
1997-07-07 8/12
TOSHIBA
TA7628P/HP
VOLTAGE GAIN Gm, Gv
TOTAL HARMONIC DISTORTION THD
TOTAL HARMONIC DISTORTION THD (%)
Guo, Gv - f
POWER AMP.
Vcc = 6V
80 Ta = 25°C
10 30 100 300 1k 3k 10k 30k 100k
FREQUENCY f (Hz)
THD - Pout
POWER AMP.
10 Vcc=6V
5 Ta=25°C
f= 10kHz
0.3 100Hz
0.0002 0.0010.003 0.01 0.03 0.1 0.3 1
OUTPUT POWER Pout (W)
THD - Pout (TA7628HP)
POWER AMP.
Vcc=9v
RL--8n
Ta = 25°C
150k9.
f=10kHz
0.03 0.1 0.3 1 3
OUTPUT POWER Pout (W)
TOTAL HARMONIC DISTORTION THD (%)
TOTAL HARMONIC DISTORTION THD (%)
OUTPUT POWER Pout
THD - Pout (TA7628HP)
POWER AMP.
Vcc = 6V
RL = MI
Ta = 25°C
f=10kHz
0.03 0.1 0.3 1 3
OUTPUT POWER Pout (W)
THD - Pout (TA7628HP)
POWER AMP.
Vcc=6V
f= 1kHz
Ta = 25°C
RL--16Q 8Q on
0.03 0.1 0.3 1 3
OUTPUT POWER Pout (W)
Pout - Vcc
f=1kHz
THD= 10%
Ta=25°C
2 3 4 5 6 7
SUPPLY VOLTAGE Vcc (V)
1997-07-07 9/12
TOSHIBA
TA7628P/HP
OUTPUT POWER Pout
POWER DISSIPATION PD (W)
Pout - Vcc (TA7628HP)
0.3 f=1kHz
THD = 10%
Ta=25°C
2 4 6 8 10 12 14
SUPPLY VOLTAGE Vcc (v)
PD - VCC (TA7628HP)
f=1kHz
Ta=25°C
0 2 4 6 8 10 12 14
SUPPLY VOLTAGE Vcc (V)
POWER DISSIPATION PD
ALLOWABLE POWER DISSIPATION PD (W)
PD - Vcc
f=1kHz
Ta = 25°C
2 3 4 5 6 7
SUPPLY VOLTAGE Vcc (v)
WITHOUT HEAT SINK
TA7628P
TA7628HP
20 40 60 80 100 120 140 160
AMBIENT TEMPERATURE Ta (''C)
1997-07-07 10/12
TOSHIBA TA7628P/HP
APPLICATION CIRCUIT
RADIO 12kg
0mm 0 Vcc
gt ATT m
27kQ -1
SW AVAVAV
MIC o-. 330k0 0.01.;11= 220pF
T R C) ' I -4'i,. u. _2+
0 560pF Q, I ti. I
ru+ LL Q + 3 + 10km
3.3/1F 1 Z;
SW1 - +
16 15 14 13 12 11 10 9
HEAD SW2 + + t + 13
_ + Ps a m
1 2 3 4 5 6 7 8 470 F
390kQ 1kQ 6 2m atv +3-
47 F .
SW3 £1 560pF c: p
- + g 1000p Ci t
BIAS _T x Rt g g"
LI Cl " C) 0
OSC " d i lm Ad t + o
T/ Ni; fvt tf9 c; I
- ICI-a, F +
RECORDING EQ t
SW5 C)
SWI--SW6 are set for play back.
SW Functions.
1997-07-07 11/12
TOSHIBA TA7628P/HP
OUTLINE DRAWING
DIP16-P-300-2.54A Unit : mm
C1r'lr-nr-'qi-1f-lr-qr-1
"r''"'''"-''-''---)
V 19.75MAX "
1925:02 y
C Tethl
cu (9.7:
__52'.- E
z k I O?
ll_°' co
0.735TYP I,1.4io.1 "I “0510.1 th25
Weight : 1.00g (Typ.)
1997-07-07 12/12
www.ic-phoenix.com
.
