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Sanyo Electric Components Datasheet

LC78845Q Datasheet

Sample Rate Converter

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Ordering number : EN*5236
CMOS LSI
LC78845Q
Sample Rate Converter for Digital Audio
Preliminary
Overview
The LC78845Q is a synchronous sample rate converter for
digital audio signals.
Features
• Converts data sampled at 32 or 48 kHz to 44.1-kHz
sampled data.
• Passes 44.1-kHz sampled data trough without change.
• Supports 384fs and 512fs system clock rates.
• 8× oversampling filters
• Soft muting function
• Built-in PLL circuit
Package Dimensions
unit: mm
3156-QFP48E
[LC78845Q]
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
I/O voltages
Operating temperature
Storage temperature
Symbol
VDD max
VI, VO
Topr
Tstg
Conditions
DC Characteristics
Parameter
Input voltage range
Input high-level voltage
Input low-level voltage
Output high-level voltage
Output low-level voltage
Symbol
VIN
VIH
VIL
VOH
VOL
Conditions
Ta = –30 to +70°C
IOH = –1 µA
IOL = 1 µA
This LSI can easily use CCB that is SANYO’s original bus format.
SANYO: QIP48E
Ratings
–0.3 to +7.0
–0.3 to VDD + 0.3
–30 to +70
–55 to +125
Unit
V
V
°C
°C
min
0
0.7 VDD
VDD – 0.05
typ max Unit
VDD
V
V
0.3 VDD
V
V
VSS + 0.05
V
• CCB is a trademark of SANYO ELECTRIC CO., LTD.
• CCB is SANYO’s original bus format and all the bus
addresses are controlled by SANYO.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-0005 JAPAN
22896HA (OT) No. 5236-1/10


Sanyo Electric Components Datasheet

LC78845Q Datasheet

Sample Rate Converter

No Preview Available !

AC Characteristics
1. Audio data input
Parameter
BCLKI pulse width
DATAI setup time
DATAI hold time
LRCKI hold time
LRCKI setup time
Symbol
tBKW
tDS
tDH
tLH
tLS
LC78845Q
Conditions
min typ max Unit
50 ns
20 ns
20 ns
25 ns
25 ns
2. Audio data output
Parameter
BCLKO pulse width
DATAO output delay time
DATAO setup time
DATAO hold time
LRCKO output delay time
LRCKO setup time
LRCKO hold time
WCLKO setup time
WCLKO hold time
Symbol
tBWO
tDAD
tDSO
tDHO
tLRD
tLSO
tLHO
tWSO
tWHO
Conditions
min typ max Unit
100 ns
25 ns
50 ns
50 ns
25 ns
50 ns
50 ns
50 ns
50 ns
No. 5236-2/10


Part Number LC78845Q
Description Sample Rate Converter
Maker Sanyo Semicon Device
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LC78845Q Datasheet PDF






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Sanyo Semicon Device





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