MN35503 Datasheet, PDF (1/9 Pages) Panasonic Semiconductor – D/A Converter for Digital Audio Equipment

For Audio Equipment
MN35503
D/A Converter for Digital Audio Equipment
Overview
The MN35503 is a CMOS digital-to-analog converter
designed especially for PCM digital audio equipment. It
features a built-in digital filter with 16/20-bit input.
It uses pulse edge modulation (PEM) and JVC advanced
noise shaping (VANS) to yield the high resolution and
low distortion ratio equivalent to those of 20-bit systems
covering the range between 0 and 20 kHz.
The chip incorporating an 8-fold oversampling digital
filter that eliminates a low-pass filter after the D/A
converter and greatly reduces the power consumption of
the overall D/A conversion system.
The chip makes a major contribution to reducing the
cost and size of CD players and other digital audio
equipment.
Features
Built-in 8-fold oversampling digital filter using I²S bus
• Bandwidth ripple: within ±0.05 dB for 0 to 0.454 f_s
• Cutoff band attenuation (0.546 to 7.454) f_s : 37dB
(n–0.03125) f_s to (n+0.03125) f_s : min. 60dB
n=1 to 7 (integer)
(The above characteristics include those for an
external primary low-pass filter with f_s=1.95 f_s.)
Built-in digital de-emphasis
f_s=32.0 kHz 0 to14.5 kHz max. deviation
+0.072dB/ – 0.047 dB
f_s=44.1 kHz 0 to 20 kHz max. deviation
+0.077dB/ – 0.028 dB
f_s=48.0 kHz 0 to 21.8 kHz max. deviation
+0.052dB/ – 0.053 dB
(The above characteristics include those for an
external primary low-pass filter with f_c=1.95 f_s.)
The digital filter is designed to deliver the above
bandwidth characteristics when used with an external
primary low-pass filter with f_c=1.95 f_s.
Built-in digital attenuation
Up/down over 32 steps
Support for double-speed operation (192 f_s clock)
4PEM output configuration (2PEM output per channel)
Support for low-voltage (3.0 volt) operation
Pin Assignment
MA
DIN
LRCK
BCK
MB
DV_DD2
CKO
DV_SS2
M1
OUT1C
N.C.
AV_DD1
OUT1D
AV_SS1
1
28
2
27
3
26
4
25
5
24
6
23
7
22
8
21
9
20
10
19
11
18
12
17
13
16
14
15
(TOP VIEW)
SOP028-P-0375
PDO
MD
MC
M3
DV_DD1
XIN
XOUT
DV_SS1
M2
OUT2C
N.C.
AV_DD2
OUT2D
AV_SS2
Choice of system clocks:
192f_s , 256f_s, 384f_s , 512f_s , 576f_s
Choice of input data formats: right-packed or I²S bus
(16 or 20 bits, alternating channel input, MSB first)
Built-in phase comparator
Applications
CD players and other digital audio equipment