AK4122A AKM [Asahi Kasei Microsystems], AK4122A Datasheet - Page 25
![no-image](/images/no-image-200.jpg)
AK4122A
Manufacturer Part Number
AK4122A
Description
24-Bit 96kHz SRC with DIR
Manufacturer
AKM [Asahi Kasei Microsystems]
Datasheet
1.AK4122A.pdf
(54 pages)
- Current page: 25 of 54
- Download datasheet (536Kb)
■
An integrated low jitter PLL of the DIR has a wide lock range of 32kHz to 96kHz and its lock time is less than 20ms. The
AK4122A has a sampling frequency detect function (32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz) that uses either clock
comparison against the MCLK2 or OMCLK frequency or the channel status information. The PLL loses synchronization
when receiving preambles in incorrect interval.
■
Four inputs (RX1-4) are available for DIR. Each input includes an amplifier for unbalance loads that can accept 200mVpp
or greater signal. The IPS1-0 bits select the receiver channel
■
The AK4122A can output through data from the digital receiver inputs (RX1-4) to the TX pin. The OPS1-0 bits can select
the source of the TX pin output. TX output can be stopped by TXE bit. The AK4122A does not have a TX output buffer
(Line Driver), therefore the TX pin cannot drive the 75Ω coaxial cable directly.
MS1076-E-01
96kHz Clock Recovery
Biphase Input
Biphase Output
OPS1
IPS1
0
0
1
1
0
0
1
1
Table 15. Output Data Select for TX
Table 14. Recovery Data Select
OPS0
IPS0
0
1
0
1
0
1
0
1
- 25 -
(Table
Output Data
14).
Input Data
RX1
RX2
RX3
RX4
RX1
RX2
RX3
RX4
(default)
(default)
[AK4122A]
2010/05
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