tda9881ts-v2 NXP Semiconductors, tda9881ts-v2 Datasheet - Page 4

• Manufacturer Part Number: tda9881ts-v2
• Description: Tda9881 Alignment-free Vision And Fm Sound If-pll Demodulator For Negative Modulated Tv Standards
• Manufacturer: NXP Semiconductors

Fig 1. Block diagram.
VIF2
VIF1
SIF2
SIF1
Pin numbers for TDA9881HN in parenthesis.
2 (31)
1 (30)
24 (27)
23 (26)
TUNER AGC
SUPPLY
20 (22)
V P
TOP
9 (8)
TAGC
14 (15)
18 (20)
AGND
C
AGC
VIF AGC
i.c.
3 (1)
SIF AGC
22 (24)
VAGC
SINGLE REFERENCE QSS MIXER
C
AGC
INTERCARRIER MIXER
VIF PLL
16 (17)
AMUTE0 VIF0
19 (21)
VPLL
VIF PLL
filter
RC VCO
13 (14)
LOGIC
11 (10)
FM0
DIGITAL VCO CONTROL
10 (9)
FM1
TDA9881
7 (5)
DGND
single reference
external reference signal
QSS output
or 4 MHz crystal
12 (11)
QSSO
15 (16)
REF
4.5 MHz to 6.5 MHz
FM PLL DEMODULATOR
AFC DETECTOR
SOUND TRAPS
NARROW-BAND
AUDIO PROCESSING
21 (23)
AFC
AND SWITCHES
FMPLL
4 (2)
FM PLL
filter
(18) 17
(7) 8
(3) 5
(4) 6
CVBS
FMSO
DEEM
AFD
mhc504
video output: 2 V (p-p)
de-emphasis
network
FM sound output
C
AF