Panasonic MN6475A Datasheet
For Audio Equiment
MN6475A
D/A Converter for Digital Audio Equipment
Overview
The MN6475A is a CMOS digital-to-analog converter
by noise shaping technology and is designed for PCM
digital audio equipment. It features a built-in 4 times
oversampling and 16-bit input digital filter.
It includes a digital de-emphasis circuit and analog post
filter to reduce the parts count and power consumption
of the overall D/A conversion system.
And also it includes two noise-shaping 1-bit D/A converters, one each for the left and right channels.
Features
Built-in 4 times oversampling digital filter
(Bandwidth ripple of ±0.051dB and attenuation
of 47.99dB dB)
Built-in second order analog post filter with a cutoff
frequency of 100 kHz
Built-in digital de-emphasis circuit with a deviation
between +0.47 dB and – 0.07 dB
Choice of normal or double-speed playback
Built-in overflow limiter
No zero cross distortion
Sample-and-hold circuit is unnecessary
Choice of 768fs or 384fs operation
Single 5V power supply
Pin Assignment
DD
1
2
3
4
5
6
7
8
9
10
SS
11
12
LRCLK
BCLK
SRDATA
COT1
COT2
TEST
V
X2
X1
V
V
DDL
OUTL
(TOP VIEW)
SOP024-P-0375
XOUT
24
COUT
23
CSEL
22
DEMPH
21
WVEL
20
TP
19
PWML
18
RSTB
17
V
16
15
14
13
DDR
OUTR
V
SSR
V
SSL
Applications
CD players and other digital audio equipment
MN6475A For Audio Equipment
Block Diagram
WVEL
X1
X2
CSEL
COUT
XOUT
RSTB
TP
TEST
PWML
18
+
20
9
8
22
23
24
17
19
6
Timing gen.
PWM
Logic
OUTL
12
–+
(L)
LR selector
Noise shaping logic
4 times oversampling
Digital filter
Digital de-emphasis
S/P converter
OUTR
15
–
PWM
Logic
(R)
3
SRDATA
2
BCLK
1
LRCLK
21
DEMPH
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