AK7770EQ Datasheet, PDF (8/22 Pages) Asahi Kasei Microsystems – Audio DSP with Multi-Channel Audio CODEC

[AK7770]
No. Pin name I/O
Function
Classification
53 HDT I Headphone Detection Pin
Headphones
54
HPR
O
Headphone Rch Output Pin
Output is VSS2 at initial reset
Headphones
55 HVDD - Headphone Power Supply Pin 3.3V(typ)
Analog power
supply
Headphone Common Voltage Output Pin
56 HVCOM O Connect a of 1μF cap to VSS2. Do not use for an outside circuits. Output at Headphones
initial reset is VSS2
57 VSS2 - Headphone Ground Pin 0V
Analog power
supply
58
HPL
O
Headphone Lch Output Pin
Output is VSS2 at initial reset
Headphone
output
59
AOUTR2
O
DAC2 Rch Output Pin
Output at initial reset is VSS1
60
AOUTL2
O
DAC2 Lch Output Pin
Output at initial reset is VSS1
61
AOUTR1
O
DAC1 Rch Output Pin
Output at initial reset is VSS1
Analog output
62
AOUTL1
O
DAC1 Lch Output Pin
Output at initial reset is VSS1
63 VSS1 - Analog Ground Pin 0V (connected to silicon substrate)
Analog power
supply
64 AVDD - Analog Power Supply Pin 3.3V (typ)
Analog power
supply
65
FROR2
O
ADC2 Rch Feedback Resistance Output Pin
The output at initial reset is Hi-Z
Analog output
66 FRIR2 I ADC2 Rch Feedback Resistance Input Pin
Analog input
67 FRIL2 I ADC2 Lch Feedback Resistance Input Pin
Analog input
68
FROL2
O
ADC2 Lch Feedback Resistance Input Pin
The output at initial reset is Hi-Z.
69 AINR1 I ADC Rch Single-ended Input 1 Pin
70 AINL1 I ADC Lch Single-ended Input 1 Pin
71 AINR2 I ADC Rch Single-ended Input 2 Pin
Analog output
72 AINL2 I ADC Lch Single-ended Input 2 Pin
73 AINR3 I ADC Rch Single-ended Input 3 Pin
74 AINL3 I ADC Lch Single-ended Input 3 Pin
Analog input
75 AINR4 I ADC Rch Single-ended Input 4 Pin
76 AINL4 I ADC Lch Single-ended Input 4 Pin
77 VSS1 - Analog Power Supply Pin 0.0V
Analog power
supply
Analog Common Voltage Output Pin
78 VCOM O
Output at initial reset is VSS1. Connect capacitors of 0.1uF and 2.2uF
between this pin and VSS1. No external circuits should be connected to
Analog output
this pin.
79 AVDD - Analog Power Supply Pin 3.3V (typ)
Analog power
supply
80 FROR1
O
Rch Feedback Resistance Output Pin for ADC1
The output in initial reset is Hi-Z
Analog output
Note 1. Do not leave digital input pins floating.
Note 2. When analog input pins (AINL1-4 pins, AINR1-4) are not used, leave them open.
MS0699-E-01-PB
-8-
2008/06