For Video Equipment
MN88831
PCM Audio Decoder LSI for Satellite Broadcasting Tuners
(Includes Built-In Digital Filter and D/A Converter)
Overview
The MN88831 greatly streamlines set design by incor-
porating a satellite broadcasting PCM audio decoder, a
switched capacitor D/A converter, and analog post filter
to a single chip.
Pin Assignment
PO0/MTO
PI2
PI1
DV
DD
BSTIN
BSTRM
SYNCF
DCDI
ECDO
P2M
NAMODE
BPO
36
35
34
33
32
31
30
29
28
27
26
25
Features
Built-in digital filter using 8-fold oversampling
Built-in tertiary
鈭?鈭?/div>
noise shaping D/A converter
Reduced jitter noise through use of switched
capacitor configuration
Built-in analog post filter
Built-in digital de-emphasis circuit
Choice of microcomputer interfaces with selector pin:
3-wired serial interface or I
2
C interface
Muting function supporting following settings
鈥?Pay-per-view flag detection
鈥?Error frequency detection
鈥?Detection of control code bit-7
Built-in general-purpose microcomputer I/O port
Bit stream input pin supporting 0.4 V
P-P
input
PO1
PO2
PO3
PO4
PC
DV
SS
IV
I
IV
O
XI
XO
IIN
OIN
37
38
39
40
41
42
43
44
45
46
47
48
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
NTI
NLOCK
NRES
DV
SS
AV
DDR
V
REF
OUTR
AV
SSR
BIAS
AV
SSL
OUTL
AV
DDL
Applications
Satellite broadcasting tuners (BS, CS)
DV
DD
PO5
PO6/LIBP
IFSEL
TES0
TES1
CHV
CWO/IFMOD
CS/SA
CCK/SCL
CTLI/SDA
DV
SS
(TOP VIEW)
QFP048-P-1212A
next