TEA5705
ADVANCED 4-HEAD
PLAY-BACK AND RECORD AMPLIFIER FOR VCR
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PLAY-BACK MODE
LOW NOISE AND WIDE BAND AMPLIFIERS
FOR 4 HEADS
AUTOMATIC OFFSET CANCELLATION BE-
TWEEN THE 2 SELECTED HEADS
ONE PLAY-BACK OUTPUT WITHOUT AGC
ONE PLAY-BACK OUTPUT INCLUDING AGC
RECORD AMPLIFIER INHIBITION AND RE-
CORD OUTPUTS GROUNDED
OUTPUT FOR TRACKING VIDEO INFORMA-
TION (TRIV) WITH ADJUSTABLE GAIN
SHORT PLAY/LONG PLAY ENVELOPE COM-
PARATOR WITH SCHMIDT TRIGGER OUT-
PUT
RECORD MODE
TWO INTEGRATED I/I CONVERTERS WITH
ACCURATE CONTROL OF TRANSCONDUC-
TANCE
AUTOMATIC PLAY-BACK/RECORD SWITCH-
ING BY SCANNING OF RECORD SUPPLY
PLAY-BACK LOOP INHIBITION
SO28 LARGE
(Plastic Micropackage)
ORDER CODE :
TEA5705
PIN DESCRIPTION
CASC
C2-SP
C1-SP
H1-SP
GND1
H2-SP
I
OUT
-SP
I
OUT
-LP
H1-LP
GND2
H2-LP
C2-LP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
REC
V
IN
-SP
V
MES
V
IN
-LP
GND3
TRIVADJ
CSPLP
SW-M
SW-H
CHROMA
VSPLP
LUMA-
V
CC
TRIV
5705-01.EPS
DESCRIPTION
The TEA5705 is an advancedfour head record and
play-back amplifier for VCR.
November 1992
C1-LP
CAGC
1/10