Panasonic AN3328S 2-head recording and playback amplifier ic a2 for hifi vcr Datasheet

ICs for VCR
AN3328S
2-head recording and playback amplifier IC (A2) for HiFi VCR
■ Overview
Unit: mm
10.09 ± 0.20
9
+0.10
4.30 ± 0.20
6.40 ± 0.30
16
0.15−0.05
The AN3328S is a 2-head recording and playback amplifier IC for HiFi audio, and realized
reduction of pin numbers. The package is a small
outline of 16 pins, 1.27 mm pitch and supply voltage is 5 V of single supply.
0° to 10°
■ Features
0.50 ± 0.20
(0.60)
0.65 ± 0.10
1.50 ± 0.20
8
0.65 ± 0.10
0.10 ± 0.10
1
• Damping-less amp. in playback system
• No adjustment of recording current by AGC
• 3-step switchover of recording current level with
the current emphasis switch (typ. ± 1.8 dB)
1.27
0.40 ± 0.10
■ Applications
• HiFi VCR
Seating plane
Seating plane
SOP016-P-0225C
REC curr. monitor
9
VCC
10
11
12
GND
REC in
13
14 PB out &
REC / mute
REC C
15
16
REC / PB select
■ Block Diagram
Det
AGC
H
L
Curr.
Amp.
8
Curr. emph. SW
REC out 7
REC reg2 6
CH2 in 5
4
HA2
GND (small signal)
3
CH1 in
2
REC reg1
HSW
1
HA1
1
AN3328S
ICs for VCR
■ Pin Descriptions
Pin No.
Description
Pin No.
Description
1
Audio head SW
9
REC curr. monitor (control)
2
REC regulator1
10
VCC
3
Head amp. input ch.1
11
REC AGC det
4
GND (small signal)
12
GND
5
Head amp. input ch.2
13
REC input
6
REC regulator2
14
PB out & REC / mute SW
7
REC out
15
REC C
8
Curr. emph. SW
16
REC/PB select SW
■ Absolute Maximum Ratings
Parameter
Symbol
Rating
Unit
Supply voltage
VCC
6
V
Supply current
ICC

mA
Power dissipation*2
PD
240
mW
Operating ambient temperature*1
Topr
-20 to +70
°C
Tstg
-55 to +125
°C
Storage
temperature*1
Note) *1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25°C.
*2: The power dissipation shown is for the IC package in free air at Ta = 70°C.
■ Recommended Operating Range
Parameter
Supply voltage
2
Symbol
VCC
Range
4.5 to 5.5
Unit
V
ICs for VCR
AN3328S
■ Electrical Characteristics at Ta = 25°C
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
I10(REC)
VCC = 5.0 V
REC / PB SW: High
56
(66)
76
mA
I7
VCC = 5.0 V
REC / PB SW: High
44
(48)
52
mA[p-p]
REC
AGC control characteristics
DI7
VCC = 5.0 V
REC / PB SW: High

(0.2)
1.0
dB
REC Recording current
2nd harmonic distortion
D7
VCC = 5.0 V, REC / PB SW: High
VIN = 260 mV[p-p], 2 MHz

(−43)
−35
dB
3.6

Vcc
V
REC
Circuit current
REC
AGC level
REC
Mode hold voltage
V16H
VCC = 5.0 V, REC / Mute SW: Low
VIN = 260 mV[p-p], 2 MHz
REC
Over REC hold voltage
V8L
VCC = 5.0 V
REC / PB SW: High
0

1.2
V
REC
Normal hold voltage
V8M
VCC = 5.0 V
REC / PB SW: High
1.8

3.2
V
REC
S-VHS hold voltage
V8H
VCC = 5.0 V
REC / PB SW: High
3.8

Vcc
V
REC
Over REC current ratio
I7L → I7
VCC = 5.0 V
REC / PB SW: High
1.3
(1.8)
2.3
dB
REC
S-VHS current ratio
I7H → I7
VCC = 5.0 V
REC / PB SW: High
−2.3
(−1.8) −1.3
dB
REC
Mute hold voltage 1
V14H(REC)
VCC = 5.0 V
REC / PB SW: High
3.6

Vcc
V
REC
Mute hold voltage 2
V14L(REC)
VCC = 5.0 V
REC / PB SW: High
0

1.4
V
PB
Circuit current
I10(PB)
VCC = 5.0 V
REC / PB SW: Low
9
(13)
17
mA
PB
CH1 gain
G3-14
VCC = 5.0 V, REC / PB SW: Low
HSW: High, VIN = 0.1 mV[p-p], 2 MHz
72
(76)
80
dB
PB
CH2 gain
G5-14
VCC = 5.0 V, REC / PB SW : Low
HSW: Low, VIN = 0.1 mV[p-p], 2 MHz
72
(76)
80
dB
PB
CH1 1.5 M / 2 M gain ratio
DG3-14
VCC = 5.0 V, REC / PB SW: Low
HSW: High, VIN = 0.1 mV[p-p], 2 MHz
0
(0.5)
1
dB
PB
CH2 1.5 M / 2 M gain ratio
DG5-14
VCC = 5.0 V, REC / PB SW: Low
HSW: Low, VIN = 0.1 mV[p-p], 2 MHz
0
(0.5)
1
dB
PB
CH1 / CH2 gain ratio
G3-14 →
G5-14
VCC = 5.0 V, REC / PB SW: Low
VIN = 0.1 mV[p-p], 2 MHz
−2
0
2
dB
Noise referred to PB
CH1 input
N3-14
VCC = 5.0 V
REC / PB SW: Low HSW: High


1.0
mV[rms]
Noise referred to PB
CH2 input
N5-14
VCC = 5.0 V
REC / PB SW: Low HSW: Low


1.0
mV[rms]
Note) The typical value in the parenthesis is not the guaranteed one.
3
AN3328S
ICs for VCR
■ Electrical Characteristics at Ta = 25°C (continued)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
PB
Mode hold voltage
V16L
VCC = 5.0 V
REC / PB SW: Low
0

1.4
V
PB
CH1 hold voltage
V1H(PB)
VCC = 5.0 V
REC / PB SW: Low
3.6

VCC
V
PB
CH2 hold voltage
V1L(PB)
VCC = 5.0 V
REC / PB SW: Low
0

1.4
V
PB
HSW DC unbalanced
DVOFFSET
VCC = 5.0 V
REC / PB SW: Low


20
mV[p-p]
• Design reference data
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
Parameter
Symbol
Conditions
Typ
Max
Unit
REC Cross modulation
distortion at 0.4 MHz
CMD0.4M
VCC = 5.0 V
REC / PB SW: High

(−45)

dB
REC Cross modulation
distortion at 0.9 MHz
CMD0.9M
VCC = 5.0 V
REC / PB SW: High

(−52)

dB
I M / I7
VCC = 5.0 V
REC / PB SW: High


−40
dB
PB
Crosstalk CH1 to CH2
CT1
VCC = 5.0 V
REC / PB SW: Low

−40

dB
PB
Crosstalk CH2 to CH1
CT2
VCC = 5.0 V
REC / PB SW: Low

−40

dB
PB CH1, Output 2nd
harmonic distortion
D3-14
VCC = 5.0 V, HSW: High
REC / PB SW: Low

−50

dB
PB CH2, Output 2nd
harmonic distortion
D5-14
VCC = 5.0 V, HSW : Low
REC / PB SW: Low

−50

dB
REC
Muting ratio
Note) The typical value in the parenthesis is not the guaranteed one.
4
Min
ICs for VCR
AN3328S
■ Terminal Equivalent Circuits
Pin No.
Equivalent Circuit
Description
1
Audio head SW
Voltage
Input signal
Remark
At open :
High
5V
(ch.1 Select)
0V
3 kΩ
3 kΩ
2.5 V
23 kΩ
1
3 kΩ
2
REC regulator 1
D.C
46.6 kΩ

REC: ON
2
18 kΩ
101.2 kΩ
3
Head amp. input
1.125 kΩ
ch.1
0.7 V
2.1 V
380 Ω

6 kΩ
15 kΩ
3

4

GND (small signal)
5

Head amp. input
ch.2
1.125 kΩ
0.7 V
2.1 V
5
380 Ω
6 kΩ

15 kΩ
5
AN3328S
ICs for VCR
■ Terminal Equivalent Circuits (continued)
Pin No.
Equivalent Circuit
Description
6
REC regulator
Voltage
2
Remark
D.C
46.6 kΩ

REC: ON
6
18 kΩ
101.2 kΩ
7
REC out
A.C
750 Ω
7

9
REC curr. monitor
(control)
9
800 Ω
200 Ω
8
Curr. emph. SW
Input signal
At open:
Middle
75 kΩ
45 kΩ
9 kΩ
(Curr. emph.
5V
23 kΩ
normal mode)
2.5 V
3.5 V
23 kΩ
69 kΩ
8
75 kΩ
69 kΩ

10
0V
1.5 V
11

VCC
REC AGC det

D.C

200 Ω
200 Ω
20
12
6

GND


ICs for VCR
AN3328S
■ Terminal Equivalent Circuits (continued)
Pin No.
Equivalent Circuit
Description
13
Voltage
Remark
REC input
10.5 kΩ
20 kΩ
20 kΩ

2V
12 kΩ
2.7 V
2.7 V
200 Ω
13
14
PB out &
REC / mute SW
80 Ω
At open: Low
1.8 V
46 kΩ
(REC Mute
OFF)
3 kΩ
200 Ω
2.5 V
1.8 kΩ
Input signal
14
4.3 V
69 kΩ
1.8 V
15
Audio REC
D.C
capacitor
1.5 kΩ

200 Ω
500 Ω
6k Ω
10.7k Ω
200 Ω
1.5 kΩ
15
16
REC / PB
Input signal
select SW
At open: Low
(PB-Mode)
4.5kΩ
5V
0V
100 Ω 100 Ω
23 kΩ
100 kΩ
69 kΩ 69 kΩ
2.5 V
16
7
8
Curr. emph. SW
0.01 µF
8
7
6
5
4
3
HA1
0.01 µF
0.01 µF
2
1
H
100 Ω
HSW
9
10
11
12
13
14
15
16
FM in
47 µF
100µH
0.01 µF
0.01 µF
12 Ω
REC/mute High
FM out
0.01 µF
3.3µF
REC / PB Low
AN3328S
ICs for VCR
■ Application Circuit Example
VCC
5V
Det
AGC
L
Curr.
Amp.
HA2
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