Panasonic MN6460A Datasheet
For Audio Equipment
MN6460A
A/D Converter for Digital Audio Equipment
Overview
The MN6460A is a 16-bit CMOS analog-to-digital
converter designed especially for PCM digital audio
equipment. It features a built-in digital filter. It uses noise
shaping to convert an analog signal to a 16-bit digital
signal.
Incorporating digital filter permits simplification of the
analog filter that normally precedes the A/D converter,
thus greatly reducing the power consumption of the
overall A/D conversion system.
Features
Analog and digital-mixed CMOS LSI
A/D conversion using noise shaping
64-fold oversampling
Built-in digital filter
Sample and hold circuit is unnecessary
Serial output using two's complement code
Built-in offset compensation circuit
Built-in overflow limiter
Single 5-volt power supply (when V
AG=2.5 V)
=1.5 V and
REF
Pin Assignment
DV
DD
LR–POL
I–E
LR–CLK
B–CLK
CLR
OFCLR
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
EXCLK
CV
CV
N.C.
N.C.
AV
AV
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
SS
17
DD
18
19
20
SS
21
DD
SSOP042-P-0450
(TOP VIEW)
DV
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
SS
TEST
N.C.
DOUT
N.C.
NSUB
N.C.
N.C.
N.C.
N.C.
TCLK
N.C.
N.C.
N.C.
AMPBIAS
N.C.
AV
SS
AV
DD
AIN
AG
V
REF
Applications
DAT players and other digital audio equipment
MN6460A For Auido Equipment
Block Diagram
DSQ:1bit Delta Sigma Quantizer
AIN
1st DSQ (+)
24
1st DSQ (–)
A/D converter
× 1/2
× 1/2
+
–
2nd DSQ
Summing logic
3rd DSQ
EXCLK
15
Digital filter
Clock
Generator
FIR 1
Comb-filter
OFFSET
Canceller
7
OFCLR
FIR 2
Low-pass-filter
P/S
Converter
2
3
I-E
LR-POL
4
LR-CLK
5
B-CLK
6
CLR
39
DOUT
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