ATA5756/ATA5757 UHF ASK/FSK Transmitter IC with Integrated FSK Application, Frequency Range: 313 to 317 MHz (432 to 448 MHz), 6 dBm, 0 pages

ATA5756/ATA5757
UHF ASK/FSK Transmitter
DATASHEET

Features
● PLL transmitter IC with single-ended output
● High output power (6dBm) at 8.1mA (315MHz) and 8.5mA (433MHz) typical values
● Divide by 24 (Atmel® ATA5756) and 32 (Atmel ATA5757) blocks for 13MHz crystal
frequencies and for Low XTO start-up times

● Modulation scheme ASK/FSK with internal FSK switch
● Up to 20kBaud manchester coding, up to 40kBaud NRZ coding
● Power-down idle and power-up modes to adjust corresponding current consumption
through ASK/FSK/enable input pins

● ENABLE input for parallel usage of controlling pins in a 3-wire bus system
● CLK output switches ON if the crystal current amplitude has reached 35% to 80% of its
●
●
●
●

final value
Crystal oscillator time until CLK output is activated, typically 0.6ms
Supply voltage 2.0V to 3.6V in operation temperature range of –40°C to +125°C
ESD protection at all pins (4kV HBM)
Small package TSSOP10

Benefits
● Low parasitic FSK switch integrated
● Very short and reproducible time to transmit typically < 0.85ms
● 13.125MHz/13.56MHz crystals give opportunity for small package sizes

4702L-RKE-03/14