AK4950 Datasheet, PDF (62/106 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK/Cap-less VIDEO-AMP & mini DSP

1. External Resistance Mode (BPM bit = “1”)
[AK4950]
Rch Lineout-Amp
ROUT/MIN pin
Ri
BPM bit = “1”
DAC
PMBP bit = “1”
MIN-Amp
BEEPL
BEEPS
LOUT pin
SPP/SPN pin
Figure 46. Block Diagram of MIN pin (PMBP bit = “1”, BPM bit =“1”)
LOVL1-0 bits MIN Æ LOUT
00
0dB
(default)
01
+1.34dB
10
+2dB
11
+3.34dB
Table 48. MIN Æ LOUT Output Gain
SPKG1-0 bits
00
01
10
11
MIN Æ SPP/SPN
ALC bit = “0”
ALC bit = “1”
+6.1dB
+8.1dB
+8.1dB
+10.1dB
+10.1dB
+12.1dB
+12.1dB
+14.1dB
Table 49. MIN Æ SPK Output Gain
(default)
MS1320-E-00
- 62 -
2011/10