AKD4125-A Datasheet, PDF (6/20 Pages) Asahi Kasei Microsystems – digital sample rate converter.

ASAHI KASEI
[AKD4125-A]
„ Other jumper pins set up
1. JP1 (RX) : Select of RX input
COAX: COAX input.
RX:
Optical input. <Default>
2. JP5 (CKSO) : AK4114 BICK and LRCK setting
H: BICK: 2.048MHz ∼ 12.288MHz, LRCK: 32kHz ∼ 192kHz
L: BICK: 2.048MHz ∼ 6.144MHz, LRCK: 32kHz ∼ 96kHz <Default>
When BICK and LRCK frequencies are changed, the value of X’tal (X1) frequency should be changed.
3. JP8 (TX) : Select of TX output
BNC: BNC connector (J2) output.
OPT: Optical (PORT4) output. <Default>
„ The function of the toggle SW
Upper-side is “H” and lower-side is “L”.
[SW1] (PDN): Resets the AK4125 and the AK4114. Keep “H” during normal operation.
The AK4125 and the AK4114 should be resets once bringing “L” upon power-up.
[SW2] (SMUTE): Soft mute of AK4125
„ Indication for LED
[LED1] (UNLOCK): Monitor UNLOCK pin of the AK4125. LED turns on when unlock occurs.
[LED2] (ERF): Monitor INT0 pin of the AK4114 (U3). LED turns on when unlock or parity error occurs.
<KM078701>
-6-
2006/04