Document
ICs for VCR
AN3336SB
4-Head VCR Recording/Playback Amplifier IC
s Overview
The AN3336SB is a recording/playback amplifier IC for 4-head VCR. It includes RF-AGC, automatic tracking I/O, and envelope comparing circuit.
0.3±0.11 1 36 Unit : mm
s Features
• Playback VCC = 5.0V, recording VCC = 12V • Built-in RF-AGC circuit • Built-in automatic tracking I/O circuit • Built-in envelope comparing circuit
0.8
18
19 1.3±0.25
0.1 0.2 + – 0.05
0.1±0.1
0.5
8.4±0.30 11.93±0.30 36-Pin SSOP package (SSOP036-P-0450A)
s Pin Descriptions
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Pin name Head switching Envelope ON/OFF switching Ch 1 head amp. damping Ch 1 head amp. input Small-signal ground Ch 2 head amp. input Ch 2 head amp. damping Sub-ground Sub-ground Ch 3 head amp. damping Ch 3 head amp. input Small-signal ground Ch 4 head amp. input Ch 4 head amp. damping Rec. current amp. (LP) output Rec. feedback Rec. current amp. (SP) output Rec. VCC Pin No. 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Pin name Evelope detector capacitor for ch 3 and ch 4 Peaking for recording Automatic tracking output Automatic tracking detector capacitor Automatic tracking control Automatic tracking VCC Rec. Y–input Chroma output Sub-ground Sub-ground Sub-ground Recording C–input AGC output AGC detector capacitor Envelope detector capacitor for ch 1 and ch 2 Head amp. switching ENV output, recording bias Playback VCC
1.3±0.25
(0.28)
2.85±0.2
15.2±0.30
1
AN3336SB
s Block Diagram
PB 5V VCC
ICs for VCR
+
HASW ENV
C– IN
Y– IN
AT GCA
AT OUT
SUB– GND MAIN– GND
1.5kΩ
0.1µF 0.01µF
0.1µF
33kΩ
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
Det.
AGC CHROMA Amp.
Det.
LOG
Mix.
Comp.
Det. SP L H
Det. LP H L
Rec Logic H L L H LP SP
HA1
HA2
HA3
HA4 PB ON PB ON
1
2
3 + 1µF
4
5
6
7 + 1µF
8
9
10
1µF
11
12
13
14 + 1µF
15
0.1µF
16
17
18 +
0.01µF 0.01µF
+
0.01µF 0.01µF
0.01µF 0.1µF
* 100Ω
HSW
* 100Ω
SUB–GND
* 100Ω
* 100Ω
250 Ω
*
250 Ω
*
Rec VCC 12V
ENV OFF
H
Note) The resistance of notation* should be between 0 and 500 ohms.
s Absolute Maximum Ratings
Parameter Supply voltage (1) Supply current (2) Power dissipation Note 2) Operating ambient temperature Note 1) Storage temperature Note 1) Symbol PB VCC Rec VCC PD Topr Tstg Rating 6 13 440 –20 to +70 –55 to +125 Unit V V mW ˚C ˚C
Note 1) Ta=25˚C for except ambient temperature and storage temperatures. Note 2) Allowable power dissipation of the package at Ta=70˚C.
2
ICs for VCR
s Recommended Operating Range (Ta=25˚C)
Parameter Operating supply voltage range (1) Operating supply voltage range (2) Symbol PBVCC RecVCC Range 4.5V to 5.5V 8.5V to 12.5V
AN3336SB
s Electrical Characteristics (Ta=25±2˚C)
Parameter PB circuit current CH 1 gain CH 2 gain CH 3 gain CH 4 gain HSW change-over sensitivity HASW change-over sensitivity AGC output amplitude AGC control sensitivity HSW DC unbalance (I) HSW DC unbalance (II) HASW DC unbalance (I) HASW DC unbalance (II) Input conversion noise (1) Input conversion noise (2) Input conversion noise (3) Input conversion noise (4) Auto-tracking output at no-input Auto tracking max. output ENV output amplitude Rec. circuit current SP Y–Rec. current output LP Y–Rec. current output ratio SP 8MHz f characteristics ratio LP 8MHz f characteristics ratio Rec. chroma output ratio PB circuit current CH 1 gain CH 2 gain CH 3 gain CH 4 gain AGC output amplitude Rec circuit current SP Y–Rec. current output Rec. chroma output ratio Rec. current 2nd harmonics distortion Cross-modulation relative level Auto tracking SP output voltage (1) Auto tracking SP output voltage (2) Symbol I36 G4–26 G6–26 G11–26 G13–26 S1 S34 V4–31 ∆V4–31 HSW26 (I) HSW26 (II) HASW26 (I) HASW26 (II) N4–26/G4–26 N6–26/G6–26 N11–26/G11–26 N13–26/G13–26 V21min. V21max. V35 I18 I17 I15/I17 I17H/I17 I15H/I15 I17C/I17 I36 G4–26 G6–26 G11–26 G13–26 V4–31 I18 I17 I17C/I17 D2f DM V21SP1 V21SP2 PB VCC=5V PB VCC=5V PB VCC=5V PB VCC=5V PB VCC=5V PB VCC=5V PB VCC=5V PB VCC=5V PB VCC=5V PB VCC=5V PB VCC=5V PB VCC=5V PB VCC=5V PB VCC=5V PB VCC=5V PB VCC=5V PB VCC=5V PB VCC=4.8V PB VCC=4.8V PB VCC=5V Rec VCC=12V Rec VCC=12V Rec VCC=12V Rec VCC=12V Rec VCC=12V Rec VCC=12V PB VCC=5V PB VCC=5V PB VCC=5V PB VCC=5V PB VCC=5V PB VCC=5V Rec VCC=12V Rec VCC=12V Rec VCC=12V Rec VCC=12V Rec VCC=12V PB VCC=4.8V, Vin=400mVP–P PB VCC=4.8V, Vin=100mVP–P PB VCC=4.8V (3.4) (1.5) (0.1) 17 – 2.5 –4 –4 –15 (43) (57) (57) (57) (57) (200) (33) (12) (–12) (– 43) (– 48) (3.9) (2.5) (0.5) –7 3.8 3.5 48 32 2.5 130 53 53 53 53 Condition min typ max 56 61 61 61 61 3.8 3.8 270 3.0 100 100 100 100 1.0 1.0 1.0 1.0 1.0 Unit mA dB dB dB dB V V mVP–P dB mVP–P mVP–P mVP–P mVP–P µVrms µVrms µVrms µVrms V V VP–P mA mAP–P dB dB dB dB mA dB dB dB dB mVP–P mA mAP–P dB dB dB V V V
Auto tracking LP output voltage difference V21LP–V21SP2
Note) The characteristics value in parentheses is not a guaranteed value, but reference one on design.
3
AN3336SB
s Functional Descr.