XW-HTD640
72
1
2
4
1
2
3
4
C
D
F
A
B
E
Pin Function (2/2)
36
NC
System
Output
Not used. Left it floating
37 GND Ground NA
Ground
38 RFENABLE
Power
Management
Output
RF Power Enable,
0 => Turn off RF module power
Tri-state => Turn on RF module
power
Open Drain Output
39
ANTENNA
Front-End
Output
Antenna Switch Logic
40
ANTENNAI
Front-End
Output
Antenna Switch Logic Inverted
41 VCC
Power NA
3.3
V
42
LRSEL
System
Input
Left Right Audio Channel Select
43
ANT-FORCE
System
Input
Antenna Force Control.
44 GND Ground NA
Ground
45
VCXO1
DAC
Output
VCXO Control Bit 1
46
VCXO2
DAC
Output
VCXO Control Bit 2
47
VCXO3
DAC
Output
VCXO Control Bit 3
48
VCXO4
DAC
Output
VCXO Control Bit 4
49
VCXO5
DAC
Output
VCXO Control Bit 5
50
VCXO6
DAC
Output
VCXO Control Bit 6
51
VCXO7
DAC
Output
VCXO Control Bit 7
52
VCXO8
DAC
Output
VCXO Control Bit 8
53 GND Ground NA
Ground
54
VCLKIN
DAC
Input
VCXO 12.288 MHz clock input
55 AUDIOENABLE1
Power
Management
Output
Audio Circuit Power Enable 1,
0 => Turn off Audio Circuit 1 power
Tri-state => Turn on Audio Circuit 1
power
Open Drain Output
56 AUDIOENABLE2
Power
Management
Output
Audio Circuit Power Enable 2,
0 => Turn off Audio Circuit 2 power
Tri-state => Turn on Audio Circuit 2
power
Open Drain Output
57 VCC
Power NA
3.3
V
58
SDTI
DAC
Output
DAC-SDTI (I2S format)
59 LRN
DAC Output
DAC-LRN
(48K)
60
MCLK
DAC
Output
DAC-MCLK (12.288 MHz)
61 GND Ground NA
Ground
DAC
Output
DAC-SCLK (3.072 MHz)
63 AUDIOSTATUS System
Output Audio
Status
Indicate,
0 => Low level audio or no audio
Tri-State => Audio present
Open Drain Output
System
Output
RF Status Indicate
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