[AK4627]
MCLK
512fs
256fs
128fs
Sampling Speed
Normal
Double
Quad
Table 5. Sampling Speed (Auto Setting Mode)
LRCK
fs
MCLK (MHz)
Sampling
Speed
128fs
256fs
512fs
32.0kHz
44.1kHz
48.0kHz
88.2kHz
96.0kHz
176.4kHz
192.0kHz
-
-
-
-
-
-
-
16.3840
22.5792
24.5760
Normal
22.5792
24.5760
-
-
-
-
Double
Quad
-
22.5792
24.5760
-
-
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
AK4627
L/RIN+
L/RIN
LPF
LPF
SCF
SCF
LPF
L/RIN-
L/RIN-
(Open)
Figure 1. Differential Input (SGL pin = “L”)
Figure 2. Single-ended Input (SGL pin = “H”)
MS1278-E-02
2012/03
- 16 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
