TDA8120B Datasheet, PDF (4/6 Pages) STMicroelectronics – MULTISTANDARD VIDEO AND SOUND IF SYSTEM

TDA8120B
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition s
Min.
QUASI SPLIT SOUND CHANNEL OR FRENCH SOUND CHANNEL (see notes 1 and 2)
d
Distorsion
V22 B/G Operation
2
L Operation
0
V15 Video Muting
8
Typ.
Max.
2
5
0.8
VS
Notes : 1. QUASI SPLIT SOUND CHANNEL
Video carrier relative level = 0dB
f = 38.9MHz
∆f = 0 Sound carrier relative level = 13dB (mono or L) f = 33.4MHz
Sound carrier relative level = -20dB (R)
f = 33.16MHz
VI = 10mV Video carrier modulated with syncs ; V22 = 2V, unless otherwise specified.
2. FRENCH SOUND CHANNEL
VI = 10mV (Carrier level) ; fo = 39.2MHz ; Fm = 1kHz ; m = 80% ; V22 = 0.8V, unless otherwise specified.
Unit
%
V
V
V
TEST CIRCUIT
IF IN
SAW FILTER
VIF
QSS (B/G)
or AM (L)
V ₂₂
C5
C6
AGC delay adj.
C8
P1
24
23
22
21
20
19
18
17
16
15
14
13
V₁₅
AGC
OUT
TDA8120B
1
2
3
C1
AF AM OUT
38.9MHz
4
5
6
C3
5.50MHz OUT
5.74MHz OUT
7
8
9
C4
VIDEO OUT
10
C7
11
12
C2
L2
38.9 or 32.7MHz
V_S
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