AD6411
PIN FUNCTION DESCRIPTIONS
Pin No.
Label
Description
Type
Comments
1
2
3
REF
SFS
DECT Reference Clock Input
S-Field Sample
Input
Input
HIGH = Sample; LOW = Hold
DEMOD_DATA Demodulator Output OR Sliced Demodulator
Output
Output Mode Controlled by DSD Bit in
Control Register
4
TX_ENAB
Transmit Section Power Control Input
Input
Active-High or Active-Low Set by
TSB Bit in Setup Word
5
COFF
DMR
IFLF
Demodulator Offset Capacitor
Output Connect to External Capacitor
6
Input for IF PLL Loop Filter Voltage after Data Filter Input
7
Drive for IF PLL Active Loop Filter
Virtual Ground for IF PLL Active Loop Filter
External Resonator for Demodulator VCO
Voltage Reference Output
Output
Input
8
IFCP
9
IFVCO
VREF
Input
10
Output 1.3 V; Can Be Used for A/D Converter
Reference in Soft-Decision Applications
11, 15, 18,
25, 27, 29,
31, 33, 34,
36, 39
GND
Ground
Power
12
13
14
16
17
19
20
21
22
VCCDM
RSSI
PLL Demodulator Supply
Receive Signal Strength Indicator Output
IF Supply 2
Power
Output
Power
Input
Normally Connected to VS1
VCCIF2
IFINB
IFIN
Normally Connected to VS1
IF Input
Balanced Input from IF SAW Filter
Balanced Input from IF SAW Filter
Normally Connected to VS1
IF Input
Input
VCCIF1
VS1
IF Supply 1
Power
Input
Regulator Sense
Connect to Collector of VS1 Pass Device
VF1
Regulator Force
Output Connect to Base of VS1 Pass Device
SYN_ENAB
Synthesizer Section Power Control Input
Input
Active-High or Active-Low Set by
SSB Bit in Setup Word
23
24
26
28
30
VBAT2
MXOP
Connect to Battery
Power
Output
Power
Input
Receive Mixer Output
Receive RF Supply
VCCRX
RFIN
Normally Connected to VS1
Receive Mixer Input
RX_ENAB
Receive Section Power Control Input
Input
Active-High or Active-Low Set by RSB
Bit in Setup Word
32
35
37
38
40
41
42
43
44
45
46
47
48
TXOP
VCCTX
VCCPD
LF
Transmit Output
Output Open Collector Output
Transmit Supply
Power
Power
Output
Input
Normally Connected to VS1
Normally Connected to VS1
Phase Detector and Charge Pump Supply
Loop Filter (from Charge Pump Output)
UHF Oscillator
VCOB
VCCVCO
VCO
VCO Tank Circuit
Supply for Second Regulator Sense
UHF Oscillator
Power
Input
Connect to Collector of VS2 Pass Device
VCO Tank Circuit
BSW
Resonator Band Switch Output
Regulator Force
Output Controls Tank Circuit Band Segment
VF2
Output Connect to Base of VS2 Pass Device
VBAT1
EN
Connect to Battery
Power
Input
Input
Input
3-Wire Bus Enable
DATA
CLK
3-Wire Bus Data
3-Wire Bus Clock
–4–
REV. 0