u2741b ATMEL Corporation, u2741b Datasheet - Page 3

• Manufacturer Part Number: u2741b
• Description: Uhf Ask/fsk Transmitter U2741b
• Manufacturer: ATMEL Corporation

2. Pin Configuration
Figure 2-1.
Table 2-1.
4733B–RKE–09/05
Pin
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
Pinning SSO16
Pin Description
PWRGND2
PWRGND1
PWRVCC
PWRSET
Symbol
LFGND
LFVCC
DIVIC
XTO2
XTO1
GND
VCC
ASK
ANT
FSK
CLK
LF
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
LFGND
LFVCC
VCC
GND
CLK
FSK
ASK
LF
1
3
5
8
2
4
6
7
U2741B
16
15
14
13
12
11
10
9
DIVIC
ANT
PWRVCC
PWRSET
XTO1
XTO2
PWRGND1
PWRGND2
U2741B
3