AK4516AVF View Datasheet(PDF) - Asahi Kasei Microdevices
Part Name
Description
MFG CO.
'AK4516AVF' PDF : 39 Pages View PDF
ASAHI KASEI
[AK4516A]
Zero Cross & Timer Control
Addr Register Name
D7
D6
D5
D4
D3
D2
D1
D0
03H Zero Cross & Timer Control LRGA GSEL NRTM1 NRTM0 ZENM LTM1 LTM0 ZELM
R/W
R/W R/W R/W R/W R/W R/W R/W R/W
RESET
1
1
1
0
0
1
0
0
LRGA: Selects the method of writing to IPGA
0: Independent data can be written to IPGA and IPGR.
1: Common data can be written to IPGL and IPGR.
In this case, when a data is written to IPGL, the same data is also written to IPGR. When a
data is written to IPGR, a data is only written to IPGR. When IPGL value differs from IPGR
value, IPGL and IPGR values can be set by a common data after writing IPGL value at
LRGA="1". (RESET)
GSEL:Selects input gain (set a common Lch and Rch)
0: LINE
1: MIC (RESET)
Even if LINE and MIC are the same data value, both gain values are different.
NRTM1-0: Zero crossing timeout at writing operation by uP and auto recovery operation.
Set-up zero crossing timeout at writing operation by uP and the auto recovery operation. The
writing operation by uP and the auto recovery operation set up in common. In case of the
auto limitter operation, zero crossing operation is set by different bits(LTM1-0).
NRTM1 NRTM0
Zero crossing timeout(ZENM="1")
48kHz 44.1kHz 32kHz
0
0
513/fs 10.7ms 11.6ms 16.0ms
0
1
1025/fs 21.4ms 23.2ms 32.0ms
1
0
2049/fs 42.7ms 46.5ms 64.0ms RESET
1
1
4097/fs 85.4ms 92.9ms 128.0ms
Table 5 . Zero crossing timeout at uP writing operation and auto recovery operation.
(NRTM1="1", NRTM0="0" at RESET)
ZENM: Enables zero crossing detection at uP WRITE operation or auto recovery operation
(0: Disable, 1: Enable)
1: When IPGA of each L/R channels do zero crossing or timeout independently, the IPGA
value is changed by uP WRITE operation or auto recovery operation.
0: IPGA is changed immediately.
M0026-E-00
- 25 -
1998/08
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