U2741B Datasheet, PDF (3/9 Pages) ATMEL Corporation – UHF ASK/FSK TRANSMITTER

Pin Configuration
Figure 3. Pinning SSO16
ASK 1
FSK ₂
VCC 3
CLK 4
GND ₅
LFVCC 6
LFGND ₇
LF ₈
U2741B
16 ^DIVIC
15 ^PWRSET
14 ^PWRVCC
13 ^ANT
12 ^PWRGND1
11 ^PWRGND2
10 ^XTO1
9 ^XTO2
Pin Description
Pin
Symbol
1
ASK
2
FSK
3
VCC
4
CLK
5
GND
6
LFVCC
7
LFGND
8
LF
9
XTO2
10
XTO1
11
PWRGND2
12
PWRGND1
13
ANT
14
PWRVCC
15
PWRSET
16
DIVIC
Function
Modulation input ASK
Modulation input FSK
Supply voltage
Clock output
Ground
Supply voltage VCO
VCO ground
Circuit PLL loop
FM modulation output
Connection for crystal
Power GND2
Power GND1
RF output
Supply voltage power amplifier
Applied to VCC
Pitch factor setting for crystal
L: high crystal frequency
H: low crystal frequency
4733A–RKE–11/03
U2741B
3