U2745B-MFB Atmel, U2745B-MFB Datasheet - Page 7

• 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

Electrical Characteristics (Continued)
All parameters are refered to GND (pin 5), V
The possible operating ranges refer to different circuit conditions: V
4734A–RKE–11/03
Parameters
Frequency range of the VCO
Clock output
(CMOS microcontroller compatible)
Load capacitance at CLK
Series resonance R of the crystal
ASK modulation frequency rate
CLK output
- Output current Low
- Output current Low
- Output current High
- Output current High
ASK input
- Low level input voltage
- High level input voltage
- Input current High
Enable ASK
- Low level input voltage
- High level input voltage
- Input current High
Test Conditions
f
f
Duty cycle of the
modulation signal = 50%
V
V
V
V
XTO
XTO
CLK
CLK
CLK
CLK
= 13.56 MHz
= 9.84 MHz
= 0.2 ´ V
= 0.3 ´ V
= 0.8 ´ V
= 0.7 ´ V
S
= 3 V, T
S
S
S
S
amb
= 25 ° C, unless otherwise specified
S
= 2.2 V to 4.0 V at T
Symbol
f
modASK
V
Clk
V
V
V
C
I
I
f
V
ASKh
FSKh
VCO
Rs
Rs
ASKh
I
I
FSKh
ASKl
FSKl
I
I
CLK
oh
oh
EN
ol
ol
out
Min.
-150
-200
310
150
200
1.7
1.7
0
amb
= -40 ° C to +85 ° C
f
out
Typ.
/128
Max.
440
100
100
140
140
0.3
0.3
10
80
20
U2745B
MHz
MHz
Unit
kHz
µA
µA
µA
µA
µA
µA
pF
W
V
V
V
V
7