u3741bm ATMEL Corporation, u3741bm Datasheet - Page 3

• Manufacturer Part Number: u3741bm
• Description: Uhf Ask Receiver Ic
• Manufacturer: ATMEL Corporation

Pin Configuration
Pin Description
4662B–RKE–10/04
Pin
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
FSK/ASK
LNAGND
MIXVCC
ENABLE
Symbol
LNA_IN
LFGND
LFVCC
CDEM
DGND
MODE
AGND
DVCC
POUT
SENS
AVCC
TEST
DATA
XTO
NC
LF
Function
Sensitivity-control resistor
Selecting FSK/ASK. Low: FSK, High: ASK
Lower cut-off frequency 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
Selecting 433.92 MHz/315 MHz. Low: 4.90625 MHz (USA). High: 6.76438 (Europe)
Programmable output port
Test pin, during operation at GND
Enables the polling mode
Low: polling mode off (sleep mode)
H: polling mode on (active mode)
Data output/configuration input
Figure 1. Pinning SO20
FSK/ASK
LNAGND
MIXVCC
LNA_IN
CDEM
DGND
AGND
AVCC
SENS
NC
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
DATA
ENABLE
TEST
POUT
MODE
DVCC
XTO
LFGND
LF
LFVCC
U3741BM
3