Philips 32PF9968/10 Service Manual page 127

Circuit Descriptions, Abbreviation List, and IC Data Sheets
9.6.3 Diagram B03B, TDA10048HN (IC7T17-1)
Block Diagram
ANALOG
VIM
ADC
VIP
PLL
XIN
OSCILLATOR
XOUT
SCL_TUN
SDA_TUN
2
I C-BUS
INTERFACE
SCL, SDA
SADDR
ΣΔ ΣΔ
GPIO[3:0]
ΣΔ ΣΔ
MPEG-2
MPEG TS
OUTPUT
DO[7:0]/S_DO
INTERFACE
(parallel/serial)
Pin Configuration
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ΣΛ
STEP INTERFACE
DUAL
AGC
ΣΛ
STEP INTERFACE
DIGITAL FFT
AGC 2K / 4K / 8K
CARRIER TIME
RECOVERY RECOVERY
TDA10048HN
DSP CORE SYNCHRONISATION
FREQUENCY, TIME, FRAME RECOVERY
FFT WINDOW POSITIONING
TPS DECODING
OUTER
DE- RS
FORNEY
SCRAMBLER DECODER
INTERLEAVER
C P T _ U N C O R
terminal 1
index area
V 1
DDA(ADC)(3V3)
I V M 2
3
V P I
4
V
SSA(ADC)
V 5
DDD(ADC)(3V3)
V 6
SSA(OSC)
TDA10048HN
X N I 7
8
X O U T
V 9
DDA(OSC)(1V2)
V 10
SSA(PLL)
V 11
DDA(PLL)(1V2)
12
V
DDDC(1V2)
Transparent top view
Figure 9-9 Internal block diagram and pin configuration
Q522.1E LA
AGC_TUN AGC_IF
DIGITAL FRONT-END
AND OFDM
DEMODULATION
DYNAMIC CCI
TIMESHIFT CANCELLER
COARSE
ACI
TIME
FILTERING
ESTIMATOR
BIT
VITERBI
DE-
DE- DECODER
INTERLEAVER
V B E R C B E R
36 TRST_N
35 S C L
34
S D A
33
SADDR
32 GPIO0
31 V
DDDC(1V2)
30 V
SSDC
29
V
SSD
28 V
DDD(3V3)
27 DO7
26 DO6
25
DO5
9. EN 127
CHANNEL ESTIMATION
AND CORRECTION
PARTIAL
CPE
CHANNEL
CALCULATION
ESTIMATION
TIME
INTERPOLATION
FREQUENCY
INTERPOLATION
CONFIDENCE CHANNEL
CALCULATION CORRECTION
(I,Q)
confidence
INNER
FREQUENCY
DEMAPPER
DE-
INTERLEAVER
CHANNEL DECODER
H_16800_127.eps
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