PREAMPLIFIER WITH ALC CIRCUIT FOR MINI/MICRO CASSETTE TAPE RECORDER
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA7330P,TA7330F
TA7330P / F
Preamplifier With ALC Circuit...
Description
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA7330P,TA7330F
TA7330P / F
Preamplifier With ALC Circuit For Mini / Micro Cassette Tape Recorder
The TA7330P and TA7330F are preamplifier for 3V or 4.5V battery use. It consists of low noise preamplifier and ALC (automatic level control) circuit, and is suitable for mini / micro cassette tape recorder applications.
Features
· Low supply voltage use: VCC (opr) = 2~5V (Ta = 25°C)
· Low noise
: Vni = 1µVrms (typ.)
· Wide ALC range
: WALC = 40dB (typ.
· Low quiescent current : ICCQ = 0.75mA (typ.)
(VCC = 3V, Ta = 25°C)
· TA7330F (SO) is standard model of flat package.
Test Circuit / Block Diagram
TA7330P +
+
VCC=3V
Weight SIP7−P−2.54A: 0.72g (typ.) SSOP16−P−225−1.00: 0.14g (typ.)
-
100µF
- R f =1kΩ
C f =10µF
-
1µF
27
INPUT - +
1µF
IN 1
DECOUPLING
+
PRE AMP
~
Rg=600Ω
3 NF
-
GND 4
47PF CNF
VCC OUT 6
ALC
5 ALC
+-
1µF
RL=10kΩ
OFF ON ALC SW
10kΩ RNF
+
100kΩ
-
47µF
-
47µF
+ GV = 50dB
D1 510Ω
+
TA7331P
D2
D1, D2: IN60
1 2002-10-30
TA7330P / F
TA7330F
+ + VCC=3V
−
100µF
− R f =1µΩ
C f =10µF
−
1µF
INPUT − +
1µF
IN 4
5 13
DECOUPLING
VCC
+
PRE AMP
OUT 12
~
Rg=600Ω
6 NF
−
GND
ALC
9 11
47PF CNF
ALC
+−
1µF
RL=10kΩ
OFF ON ALC SW
10kΩ RNF
+
Maximum Ratings (Ta = 25°C)
100kΩ
−
47µF
−
47µF
+ GV = 50dB
D1 510Ω
+
TA7331F
D2
D1, D2: IN60
Characteristic
Symbol
Rating
Unit
Supply voltage
Operating supply voltage
Power dissipation
TA7330P TA7330F
Operating temperatur...
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