AK4627 Datasheet, PDF (16/46 Pages) Asahi Kasei Microsystems – High Performance Multi-channel Audio CODEC

[AK4627]
MCLK
512fs
256fs
128fs
Sampling Speed
Normal
Double
Quad
Table 5. Sampling Speed (Auto Setting Mode)
LRCK
fs
32.0kHz
44.1kHz
48.0kHz
88.2kHz
96.0kHz
176.4kHz
192.0kHz
128fs
-
-
-
-
-
22.5792
24.5760
MCLK (MHz)
256fs
-
-
-
22.5792
24.5760
-
-
512fs
16.3840
22.5792
24.5760
-
-
-
-
Sampling
Speed
Normal
Double
Quad
Table 6. System Clock Example (Auto Setting Mode)
■ Differential/Single-ended Input selection
The AK4627 supports differential inputs (Figure 1) by setting the SGL pin = “L”, and single-ended inputs (Figure 2) by
setting the SGL pin= “H”. When single-ended input mode, L/RIN1-2 pins should be open, because L/RIN1-2 pins output
an invert signal of the input signal. The AK4627 includes an anti-aliasing filter (RC filter) for both differential input and
the single-ended input.
AK4627
L/RIN+
LPF
L/RIN-
LPF
SCF
Figure 1. Differential Input (SGL pin = “L”)
AK4627
L/RIN
LPF
SCF
L/RIN-
(Open)
Figure 2. Single-ended Input (SGL pin = “H”)
MS1278-E-02
- 16 -
2012/03