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參數資料
| 型號： | DIR1703E |
| 英文描述： | DIGITAL AUDIO INTERFACE RECEIVER |
| 中文描述： | 數字音頻接口接收機 |
| 文件頁數： | 14/19頁 |
| 文件大小： | 236K |
| 代理商： | DIR1703E |
SLES007
–
JULY 2001
14
www.ti.com
PCM audio interface (continued)
50% of VDD
50% of VDD
50% of VDD
50% of VDD
t(SL)
t(LS)
t(BCH)
t(BCL)
t(LB)
t(BL)
t(BCY)
t(DS)
t(DH)
SCKO
LRCKO
BCKO
DOUT
PARAMETERS
MIN
MAX
UNITS
t(SL)
t(LS)
t(BCY)
t(BCL)
t(BCH)
t(BL)
t(LB)
t(DS)
t(DH)
SCKO rising edge to LRCKO edge
11
ns
LRCKO edge to SCKO rising edge
5
ns
BCKO pulse cycle time
64 fS
BCKO pulse width low
78
ns
BCKO pulse width high
78
ns
BCKO rising edge to LRCKO edge
78
ns
LRCKO edge to BCKO rising edge
78
ns
DOUT setup time
78
ns
DOUT hold time
78
ns
Figure 8. Audio Data Output Timing
dedicated output pins for both professional and consumer applications
The DIR1703 has parallel output pins for both professional and consumer applications. In the professional mode
de-emphasis flag EMFLG indicates a 50/15-
μ
s time constant pre-emphasis. Professional mode is set when Bit
0 of CSBIT Byte 0 is high. When Bits 2 to 4 of CSBIT Byte 0 is 110, the EMFLG becomes high. In other cases,
EMFLG is low. Audio/non-audio flag ADFLG indicates S/PDIF data mode, i.e., Bit 1 of CSBIT Byte 0. When
ADFLG is low, S/PDIF data includes PCM audio signal. In other cases, ADFLG is high.
In the consumer mode EMFLG indicates 2-channel audio with a 50/15-
μ
s time constant pre-emphasis.
Consumer mode is set when Bit 0 of CSBIT Byte 0 is low. When Bits 3 to 5 of CSBIT Byte 0 is 100, EMFLG
becomes high. In other cases, EMFLG is low. The ADFLG signal indicates whether S/PDIF includes digital data,
such as AC-3 or not. When Bit 1 of CSBIT Byte 0 is high, the incoming S/PDIF includes a non-audio signal. In
other cases, ADFLG is low.
These dedicated output pins are checked for only L-ch CS information. The DIR1703 does not support CRC
check function in the professional mode. As for other flags, CS bit and user-bit for professional and consumer
applications, are directly supplied by serial mode at CSBIT (pin 15) and URBIT (pin 16). These pins indicate
L-ch and R-ch information sequentially.
相關PDF資料 |
PDF描述 |
|---|---|
| DISADVANTAGE | Disadvantage of On-Chip Transient Protection (105k) |
| DISCONTINUEDPRODUCTS | Discontinued Products - August 2. 1999 |
| DISPLAY-XREF | Optoelectronic |
| DIV100 | DIV100 - DISCONTINUED PRODUCT. No longer recommended for new design. |
| DJ25E | Proximity Sensors Inductive ABS Housing |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DIR1703E/2K | 制造商:Texas Instruments 功能描述:Audio Interface Receiver 28-Pin SSOP T/R 制造商:Texas Instruments 功能描述:AUD INTRFC RCVR 28SSOP - Tape and Reel |
| DIR-600/E | 制造商:D-Link Networks 功能描述: |
| DIR-605L/E | 制造商:D-Link Networks 功能描述: |
| DIR-615/E | 制造商:D-Link Networks 功能描述: |
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