U3742BM Datasheet, PDF (3/32 Pages) ATMEL Corporation – UHF ASK/FSK RECEIVER

Pin Configuration
Figure 3. Pinning SO20
SENS ¹
FSK/ASK 2
CDEM 3
AVCC 4
AGND 5
DGND 6
MIXVCC 7
LNAGND 8
LNA_IN 9
NC ₁₀
20 DATA
19 ENABLE
18 TEST
17 RSSI
16 ^MODE
15 DVCC
14 XTO
13 LFGND
12 LF
11 LFVCC
Pin Description
Pin
Symbol
1
SENS
2
FSK/ASK
3
CDEM
4
AVCC
5
AGND
6
DGND
7
MIXVCC
8
LNAGND
9
LNA_IN
10
NC
11
LFVCC
12
LF
13
LFGND
14
XTO
15
DVCC
Function
Sensitivity-control resistor
Selecting FSK/ASK
Low: FSK, High: ASK
Lower cut-off frequency of the data filter
Analog power supply
Analog ground
Digital ground
Power supply mixer
High-frequency ground LNA and mixer
RF input
Not connected
Power supply VCO
Loop filter
Ground VCO
Crystal oscillator
Digital power supply
4735A–RKE–11/03
U3742BM
3