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Número de pieza | NJU26902 | |
Descripción | Delay | |
Fabricantes | JRC | |
Logotipo | ||
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NJU26902
Digital Audio Delay
General Description
The NJU26902 is a digital audio delay. The NJU26902 provides delay-time
adjustment function and digital audio interface.
Package
FEATURES
NJU26902VM1
NJU26902V
• 2-Channel Audio Delay (24 bits data width).
Delay Time 85msec at fs = 48kHz ( 128msec at fs = 32kHz , 43msec at fs = 96kHz)
• To make longer delay time, the NJU26902 can be connected serially.
• Non-audio-signal data can be delayed by the NJU26902.
Hardware Specification
• Digital Audio Interface
• Digital Audio Format
• Audio Bit Clock (BCK) Frequency
• Package
• Power Supply
: 1 Input port, 1 Output port
: LJ / RJ / I2S 24bit BCK : 64fs / 32fs,
Slave Mode
: 13MHz Max ( approximate fs=200KHz)
: SSOP20-M1, SSOP20 ( Pb-Free )
: 2.5V ( +3.3V input tolerant )
Function Block Diagram
LRI
BCK
SDI
SERIAL
AUDIO
L/R in
NJU26902
BCK
LRI
Delay
RAM
SERIAL
AUDIO
L/R out
SDO
Control
RESETb COUNT[5:0] MODE[1:0] SDO_OD BYPASS FS
Fig. 1 Function Block Diagram
Ver.2006-08-09
-1-
1 page www.DataSheet4U.com
Serial Audio Timing
NJU26902
Table 4 Serial Audio Input Timing Parameters
Parameter
Symbol
Test Condition
BCKI Frequency
BCKI Period
L Pulse Width
H Pulse Width
BCKI to LRI Time
fBCK
tSIL
tSIH
TSLI
LRI to BCKI Time
tLSI
Data Setup Time
tDS
Data Hold Time
Data Output Delay
tDH
tDOD
SDO:CL=25pF
SDO_OD=”Low”
( VDD=2.5V, VSS=0V, Ta=25°C )
Min Typ. Max Units
- - 13 MHz
35 -
35
15 -
15 -
15 -
15 -
- ns
- ns
- ns
- ns
- ns
- 15 ns
LRI
BCKI
SDI
tSIH tSIL tSLI tLSI
tDS tDH
SDO
tDOD
Fig. 4 Serial Audio Input / Output Timing
Ver.2006-08-09
-5-
5 Page |
Páginas | Total 9 Páginas | |
PDF Descargar | [ Datasheet NJU26902.PDF ] |
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