PANASONIC AN7353S

ICs for Cassette, Cassette Deck
AN7353S
Record Equalizer Amp. for Stereo Cassette Deck
■ Overview
Unit : mm
•
•
•
0.3
15.3±0.3
24
23
22
21
20
19
18
17
16
15
14
13
7.2±0.3
9.4±0.3
2.0±0.2
1.27
characteristics and gain) in medium and high frequency
band by DC control
Volume for total gain adjustment built-in (±11dB)
With pin for low frequency band boost
Drive circuit for current output built-in
1
2
3
4
5
6
7
8
9
10
11
12
0.15
0.925
■ Features
• Fine adjustment of equalizer characteristics (frequency
0.1±0.1
0.4±0.25
0.45
The AN7353S is a bipolar IC developed as a record
equalizer amp. of analogue cassette deck. Particularly in
order to support the automatic adjustment, it incorporates
various volume filter circuits and control functions. Also, it
has realized great reduction of external parts required.
24-Lead SOP Package (SOP024-P-0375)
■ Block Diagram
GND
REC.
IN (L)
CM
CH
Boost (L)
CF
24
23
22
21
20
19
Rec.
EQ
OUT (L)
18
L.P.F
fm
V– I
GH
V– I
Q
V– I
fp
V– I
Gp
V– I
VR
IN (L)
17
GT
V– I
Vout (L)
Iout (L)
VCC
CL
16
15
14
13
10
11
12
Iout (R) NC
CR
V– I
Conv.
Amp.
Amp.
Input
Sw.
Q
fp
Q
V– I
fp
V– I
fm
Gp
GT (L)
GH
GT (R)
Output
Sw.
VREF
Ireg –
Gp
V– I
Amp.
L.P.F
Rec.
1
2
–VCC
REC.
IN (R)
3
IN
MUTE
4
CQ
5
Boost (R)
fm
V– I
GH
V– I
6
CP
GT
V– I
7
EQ
OUT (R)
8
VR
IN (R)
Amp.
V– I
Conv.–
9
Vout (R)
ICs for Cassette, Cassette Deck
AN7353S
■ Absolute Maximum Ratings (Ta=25˚C)
Parameter
Symbol
Rating
VCC
±6.7
ICC (+)
26
ICC (–)
23
mA
Power Dissipation
PD
521
mW
Operating Ambient Temperature
Topr
–25 ~ + 75
˚C
Storage Temperature
Tstg
–55 ~ + 125
˚C
Supply Voltage
Supply Current
Unit
V
mA
■ Recommended Operating Range (Ta= 25˚C)
Parameter
Symbol
Range
Operating Supply Voltage Range
VCC
± 4.5V ~ ± 6.5V
■ Electrical Characteristics (VCC= ±6V, Ta=25±2˚C)
Parameter
Symbol
Reference Output (EQ Output)
VEQ
Condition
fin = 400Hz,
Vin = –6dBv
Medium/High Frequency
Band Gain
HIGH
GHH
LOW
GHL
fin = 10kHz,
Vin = –12dBv, VEQ = 0dB
High Frequency Band
Peak Gain
HIGH
GPH
Vin = –30dBv
LOW
High Frequency Band Peak WIDE
Band Width (10kHz Output) NALLOW
+1
3.5
5.5
7.5
–8.5
– 4.5
16
–6.5
18
7
9
11
20
fin = 10kHz,
Vin = –18dBv, VEQ = 0dB
2
4.5
7
–2.5
0
+2.5
3.85
4.25
4.65
1
1.2
1.4
16.5
18.5
20.5
–5.5
–3.5
–1.5
0.3
0.8
0.3
0.8
GQL
VfPH
fin = 35kHz
VfPL
fin = 10kHz
Volume Amp. Gain
(VOL Output)
HIGH
GTH
Vin = –18dBv
LOW
GTL
VOL
THD (RU)
Vin = 0dBv
Vin = –14dBv
RLV = 10kΩ
Vin = –14dBv
RLV = 1kΩ
Vin = –30dBv
fin = 1kHz
(VR Input)
fin = 1kHz
CULL
THD (RC)
VOL
VO (RU)
RLV = 10kΩ
CULL
VO (RC)
RLV = 1kΩ
Rg = 0Ω
RLV = 1kΩ, DIN/AUDIO
fin = 1kHz, 3p : OPEN
Vin = – 6dBv
fin = 1kHz, VCL = 0.3V
Vin (VR) = 0dBv
VN(RC)
IM (EQ)
OM (RU)
Output Offset Voltage (EQ Output)
Output Offset Current
(CURR Output)
Voff (EQ)
Pulse Noise Current (CURR Output)
VPN (RC)
Voff (RC)
Input Side
VIM
Output Side
VOM
Muting Control Voltage
Consumption Current
–1.5
GQW
LOW
Output Noise Voltage
(CURR Output)
Input Muting Attenuation
(EQ Output)
Output Muting Attenuation
(VOL Output)
max.
Vin = –18dBv
HIGH
Maximum Output Voltage
–4
typ.
GPL
High Frequency Band Peak
Frequency Control Voltage
Total Harmonics Distortion
fin = 25kHz
VEQ = 0dB
min.
Itot
THD = 3%
Rg = 0Ω
RLV = 1kΩ
RLV = 100kΩ
Rg = 0Ω
Pin3 threshold value voltage
(Mute ON voltage)
Pin13 threshold value voltage
(Mute ON voltage)
No signal
Unit
dBv
dB
dB
dB
V
dB
%
2.2
3.2
1
1.5
0.6
Vrms
2 mV · rms
40
dB
60
dB
–900
+500
mV
–25
+25
µA
–9
+9
mVP–O
3.9
VCC
GND
0.3
V
20
23
26
mA
ICs for Cassette, Cassette Deck
AN7353S
■ Pin Description
Pin No.
Pin No.
Pin Name
1
Main Circuit –VCC
Pin Name
13
Volume Amp. Gain (L ch.)/Output Mute Control
2
Record Amp. Input (R ch.)
14
Main Circuit +VCC
3
Record Amp. Input Mute Control
15
Record Amp. Current Output (L ch.)
4
High Frequency Band Peak Band Width Control
16
Record Amp. Voltage Output (L ch.)
5
Low Frequency Band Boost (R ch.)
17
Volume Amp. Input (L ch.)
6
High Frequency Band Peak Gain Control
18
Equalizer Amp. Output (L ch.)
7
Equalizer Amp. Output (R ch.)
19
High Frequency Band Peak Frequency Control
8
Volume Amp. Input (R ch.)
20
Low Frequency Band Boost (L ch.)
9
Record Amp. Voltage Output (R ch.)
21
Medium/High Frequency Band Gain Control
10
Record Amp. Current Output (R ch.)
22
Medium Frequency Band Cutoff Frequency Control
11
NC
23
Record Amp. Input (L ch.)
12
Volume Amp. Gain Control (R ch.)
24
GND
23
REC.
IN (L)
22
21
CM
CH
Rec.
20
19
Boost (L)
EQ
OUT (L)
CF
L.P.F
fm
V– l
GH
V– l
Q
V– l
fp
V–l
GP
V– l
18
17
+
1kΩ
10kΩ 16
Vout (L)
100kΩ
15
lout (L)
10µF
10µF
33kΩ
33kΩ
+
VR
IN (L)
GT
V– l
+
10µF
24
10µF
GND
0.47µF
■ Application Circuit
6V
14
13
CL
+VCC
V– l
Conv.
Amp.
Amp.
Input
Sw.
Q
fp
Q
V– l
fm
fp
V– l
Gp
GT (L)
GH
GT (R)
Vref
Ireg–
Output
Sw.
Gp
V– l
Amp.
2
3
6V
10µF
–VCC
+
CQ
4
Boost (R)
5
GH
V– l
CP
6
GT
V– l
EQ
OUT (R)
7
8
VR
IN (R)
Amp.
V– l
Conv.
Vout (R)
9
10µF
10kΩ
+
lout (R)
NC
CR
10
100kΩ
+
1kΩ
11
12
10µF
1
0.47µF
IN
MUTE
REC.
IN (R)
fm
V– l
10µF
L.P.F
Rec.