AFE8221-Q1
www.ti.com ........................................................................................................................................................................................... SBAS434–DECEMBER 2008
TERMINAL FUNCTIONS (continued)
TERMINAL
FUNCTION
DESCRIPTION
NAME
REFCLK
AVSS
DVSS
MCLKI
MCLKO
DVDD2
AVSS
AVDD
AVSS
DVDD
IOVDD
DVSS
IOVSS
BB_WS
BB_BCK
BB_IDAT0
BB_QDAT0
BB_IDAT1
BB_QDAT1
GRST
WAKEUP
IRQ0
NO.
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
Output
Ground
Ground
Input
Reference clock output
Analog ground
Digital ground (for MCLK oscillator)
MCLK oscillator input
MCLK oscillator output
Output
Supply
Ground
Supply
Ground
Supply
Supply
Ground
Ground
Output
Output
Output
Output
Output
Output
Input
1.8-V digital supply (for MCLK oscillator)
Analog ground
3.3-V analog supply
Analog ground
1.8-V digital supply
3.3-V digital I/O supply
Digital ground
Digital I/O ground
Secondary baseband word select
Secondary baseband word bit clock
Secondary baseband channel 0 output (I)
Secondary baseband channel 0 output (Q)
Secondary baseband channel 1 output (I)
Secondary baseband channel 1 output (Q)
Global reset (active low)
WAKEUP interrupt output
Interrupt output 0
Output
Output
Output
Output
Input
IRQ1
Interrupt output 1
IRQ2
Interrupt output 2
PWD
Power-down pin (active high)
Reset pin (active low)
No connect
RST
Input
NC
Open
NC
Open
No connect
NC
Open
No connect
NC
Open
No connect
NC
Open
No connect
NC
Open
No connect
NC
Open
No connect
NC
Open
No connect
NC
Open
No connect
NC
Open
No connect
DVSS
DVDD
IOVSS
IOVDD
IF_DFSO
IF_DCLK
IF_DOUT3
DVSS
DVDD
IF_DOUT2
Ground
Supply
Ground
Supply
Output
Output
Output
Ground
Supply
Output
Digital ground
1.8-V digital supply
Digital I/O ground
3.3-V digital I/O supply
IF interface frame sync
IF interface bit clock
IF interface data out 3
Digital ground
1.8-V digital supply
IF interface data out 2
Copyright © 2008, Texas Instruments Incorporated
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