U2745B-MFB Atmel, U2745B-MFB Datasheet - Page 5

• Manufacturer Part Number: U2745B-MFB
• Description: IC TRANSMITTER UHF ASK 16SSOP
• Manufacturer: Atmel

Specifications of U2745B-MFB

• Frequency: 310MHz ~ 440MHz
• Modulation Or Protocol: UHF, ASK
• Data Rate - Maximum: 20 kBaud
• Power - Output: 1dBm ~ 5dBm
• Current - Transmitting: 10mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2.2 V ~ 4 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-SSOP
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (typ): 2.5/3.3V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Applications: -
• Memory Size: -
• Lead Free Status / Rohs Status: Not Compliant

Figure 5. Application Circuit
4734A–RKE–11/03
ASK
CLK
EN
3.39 MHz
C
6
C
5
R
4
Figure 4. Measurement Output Network
C
C
2
LFGND
1
LFVCC
GND
VCC
ASK
CLK
EN
LF
1
2
3
4
5
6
7
8
Power
U2745B
OR
up
VCO
f
f
64
n
PWRVCC
ANT
XTO
PA
16
15
14
13
12
11
10
9
GND
PWRSET
PWRVCC
ANT
PWRGND1
PWRGND2
XTO1
NC
+V
S
= 2.2 ... 4.0 V
50 W
V
L
C
S
10
10
13.56 MHz
R
PWRSET
Z
Load-opt
C
4
Antenna
C
L
C
Feed
3
Loop1
C
Loop2
U2745B
5