U3741BM-M2FLG3 TEMIC [TEMIC Semiconductors], U3741BM-M2FLG3 Datasheet - Page 2

• Manufacturer Part Number: U3741BM-M2FLG3
• Description: UHF ASK/FSK Receiver
• Manufacturer: TEMIC [TEMIC Semiconductors]

Ordering Information
Pin Description
U3741BM
2 (25)
Extended Type Number
FSK/ASK
LNAGND
MIXVCC
LNA_IN
U3741BM-M2FLG3
U3741BM-M3FLG3
CDEM
AVCC
AGND
DGND
U3741BM-M2FL
U3741BM-M3FL
SENS
n.c.
10
1
3
5
2
4
6
7
9
8
Figure 2. Pinning SO20
14844
Preliminary Information
17
20
19
18
16
15
14
13
12
11
DVCC
POUT
MODE
XTO
LFGND
DATA
ENABLE
TEST
LF
LFVCC
Package
SO20
SO20
SO20
SO20
Pin
10
12
13
14
15
16
17
18
19
20
11
1
2
3
4
5
6
7
8
9
LNAGND High-frequency ground LNA and
FSK/ASK Selecting FSK/ASK
MIXVCC Power supply mixer
ENABLE Enables the polling mode
LNA_IN
LFGND
LFVCC
Symbol
2: IF bandwidth of 300 kHz, tube
2: IF bandwidth of 300 kHz, taped and reeled
3: IF bandwidth of 600 kHz, tube
3: IF bandwidth of 600 kHz, taped and reeled
MODE
CDEM
AGND
DGND
DVCC
AVCC
POUT
DATA
SENS
TEST
XTO
n.c.
LF
Selecting 433.92 MHz /315 MHz
Sensitivity-control resistor
Low: FSK, High: ASK
Lower cut-off frequency data filter
Analog power supply
Analog ground
Digital ground
mixer
RF input
Not connected
Power supply VCO
Loop filter
Ground VCO
Crystal oscillator
Digital power supply
Low: 4.90625 MHz (USA)
High: 6.76438 (Europe)
Programmable output port
Test pin, during operation at GND
Low: polling mode off
H:
Data output / configuration input
(sleep mode)
polling mode on
(active mode)
Remarks
Function
Rev. A1, 15-Oct-98