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LC78857V PDF даташит

Спецификация LC78857V изготовлена ​​​​«Sanyo Semicon Device» и имеет функцию, называемую «Digital Audio D/A Converter IC with On-Chip Digital Filters».

Детали детали

Номер произв LC78857V
Описание Digital Audio D/A Converter IC with On-Chip Digital Filters
Производители Sanyo Semicon Device
логотип Sanyo Semicon Device логотип 

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LC78857V Даташит, Описание, Даташиты
Ordering number : EN*5537A
Preliminaly
CMOS IC
LC78857V
Digital Audio D/A Converter IC
with On-Chip Digital Filters
Overview
The LC78857V is a sigma-delta type D/A converter for
use in digital audio systems. It provides both digital and
analog filters on chip.
Features
• Built-in 8x oversampling digital filters: 3-stage FIR
structure (31st order, 11th order, and 3rd order filters)
• Analog low-pass filter
• Digital deemphasis (handles Fs = 44.1 kHz operation)
• Digital attenuator
• Soft muting
• Supports a 384fs system clock rate.
• 5-V single-voltage power supply
• Fabricated in a silicon gate CMOS process.
Package Dimensions
unit: mm
3175A-SSOP24
[LC78857V]
SANYO: SSOP24
Specifications
Absolute Maximum Ratings at VSS = 0 V
Parameter
Maximum supply voltage
Input voltage
Output voltage
Operating temperature
Storage temperature
Symbol
VDD max
VIN
VOUT
Topr
Tstg
Conditions
Ratings
–0.3 to +7.0
–0.3 to VDD +0.3
–0.3 to VDD +0.3
–30 to +75
–40 to +125
Unit
V
V
V
°C
°C
Allowable Operating Ranges at Ta = 25°C
Parameter
Supply voltage
Input voltage
Operating temperature
Symbol
VDD
TIN
Topr
Conditions
min
3.5
0
–30
Ratings
typ
5.0
max
5.5
VDD
+75
Unit
V
V
°C
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-0005 JAPAN
D3097HA (OT) No. 5537-1/11









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LC78857V Даташит, Описание, Даташиты
LC78857V
DC Characteristics at Ta = –30 to 75°C, VDD = 3.5 to 5.5 V, VSS = 0 V
Parameter
Symbol
Conditions
Input high-level voltage (1)
Input low-level voltage (1)
Input high-level voltage (2)
Input low-level voltage (2)
Output high-level voltage
Output low-level voltage
Input leakage current
Allowable power dissipation
VIH1
VIL1
VIH2
VIL2
VOH
VOL
IL
Pd
Pin 15
Pin 15
Pins 6, 7, 8, 9, 10, 11, 14, 18, and 19
Pins 6, 7, 8, 9, 10, 11, 14, 18, and 19
IOH = –3 mA, pin 17
IOL = 3 mA, pin 17
VI = VSS, VDD:
Pins 6, 7, 8, 9, 10, 11, 14, 15, 18, and 19
VDD = 5.0 V
AC Characteristics at Ta = –30 to 75°C, VDD = 3.5 to 5.5 V, VSS = 0 V
Parameter
Oscillator frequency
BCLK frequency
BCLK pulse width
BCLK rise time
BCLK fall time
DATA setup time
DATA hold time
LRCK setup time
LRCK hold time
SH/EMP pulse period
SH/EMP pulse width
SH/EMP rise time
SH/EMP fall time
LAT/ND pulse width
Latch pulse input time
LAT/ND rise time
LAT/ND fall time
Symbol
fX
fBCX
tWB
tBr
tBf
tDS
tDH
tLS
tLH
tSHIFT
tWS
tSr
tSf
tWL
tLP
tLr
tLf
Conditions
Timing Chart
min
0.7 VDD
2.2
2.4
–25
Ratings
typ
max
0.3 VDD
0.8
0.4
25
135 200
Unit
V
V
V
V
V
V
µA
mW
Ratings
min typ
169
100
20
20
50
50
1000
300
300
300
max
18.5
3.0
30
30
100
100
100
100
Unit
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
No. 5537-2/11









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LC78857V Даташит, Описание, Даташиты
LC78857V
Analog Characteristics at Ta = 25°C, VDD = 5.0 V
Parameter
Total harmonic distortion
Signal-to-noise ratio
Crosstalk
Full scale output level
Dynamic range
Output load resistance
Test Circuit
Symbol
Conditions
THD+N
S/N
CT
VFS
DR
RL
1kHz, 0 dB
JIS-A
1kHz, 0 dB
1 kHz, 0dB
JIS-A
Pins 2 and 23
min
90
88
2.8
84
5
Ratings
typ
0.008
96
92
3.0
87
max
0.012
3.2
Unit
%
dB
dB
Vp-p
dB
k
See the application circuit example
PG: Pattern generator (signal generator)
Filter: Band limiting filter
Block Diagram
Analog low-
pass filter
(left channel)
Analog low-
pass filter
(right channel)
PWM output
circuit
(left channel)
PWM output
circuit
(right channel)
Noise shaper
(left channel)
Noise shaper
(right channel)
8 × oversampling
digital filters
Timing
generator
Interface circuit
No. 5537-3/11










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Номер в каталогеОписаниеПроизводители
LC78857VDigital Audio D/A Converter IC with On-Chip Digital FiltersSanyo Semicon Device
Sanyo Semicon Device

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