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SM5878AM Datasheet(PDF) 1 Page - Nippon Precision Circuits Inc

Part No. SM5878AM
Description  3rd-order , 2-channel D/A converter
Download  16 Pages
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Manufacturer  NPC [Nippon Precision Circuits Inc]
Direct Link  http://www.npc.co.jp/en
Logo NPC - Nippon Precision Circuits Inc

SM5878AM Datasheet(HTML) 1 Page - Nippon Precision Circuits Inc

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SM5878AM/AV
NIPPON PRECISION CIRCUITS—1
NIPPON PRECISION CIRCUITS INC.
3rd-order
Σ∆, 2-channel D/A converter
OVERVIEW
The SM5878AM/AV is a 3rd-order
Σ∆, 2-channel
D/A converter LSI for digital audio reproduction
equipment.
It
also
incorporates
an
8-times
oversampling digital filter and analog, post-converter
lowpass filters.
The SM5878AM/AV has digital deemphasis filter,
attenuator, and soft mute circuits built-in. Double-
speed operation and low-voltage operation are also
supported.
SM5878AM/AV D/A converter incorporates 3rd-
order
∑∆ modulator and DEM (Dynamic Element
Mating) circuits for high performance, even in the
presence of clock jitter.
The SM5878AM/AV operates from a 4.5 to 5.5 V
supply, and is available in 24-pin SSOP or VSOPs.
FEATURES
s
4.5 to 5.5 V operating supply voltage range
s
44.1 kHz sampling frequency
s
Normal
(384fs)
and
double-speed
(192fs),
16.9344 MHz system clock
s
16.9344 MHz crystal oscillator circuits built-in
s
16-bit, MSB first, rear-packed serial data input
format (
≤ 64fs bit clock)
s
8-times oversampling digital filter
• 32 dB stopband attenuation
• ±0.05 dB passband ripple
s
Deemphasis filter operation
• 36 dB stopband attenuation
−0.09 to +0.23 dB deviation from ideal
deemphasis filter characteristics
s
Attenuator
• 6-bit attenuator (64 steps)
• Soft mute function when MODE is HIGH
(approx. 1024/fs total muting time)
s
Built-in infinity-zero detector
s
Σ∆ 2-channel D/A converter
• 3rd-order noise shaper
• 32fs oversampling (16fs for double-speed
mode)
s
2nd-order analog, post-converter lowpass filters
built-in
s
24-pin SSOP/VSOP
s
Molybdenum-gate CMOS process
PINOUT
ORDERING INFORMATIONS
DEVICE
PACKAGE
SM5878AM
24 - pin SSOP
SM5878AV
24 - pin VSOP
1
MUTE
2
DEEM
3
CKO
4
DVSS
5
BCKI
6
DI
7
DVDD
8
LRCI
9
TSTN
10
TO1
11
AVDDL
12
LO
13
AVSS
14
RO
15
AVDDR
16
MUTEO
17
XVDD
18
XTI
19
XTO
20
XVSS
21
DS
22
RSTN
23
MODE
24
ATCK


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