3

LTC1757A-1/LTC1757A-2

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

SHDN, TXEN, BSEL Input Current

SHDN, TXEN or BSEL = 3.6V

q

10

30

50

µA

PCTL Input Voltage Control Range

q

02

V

PCTL Input Voltage Range

q

2.4

V

PCTL Input Resistance

SHDN = LO, TXEN = LO

q

50

100

150

k

Ω

PCTL Input Filter

1.25

MHz

Autozero Range

q

400

mV

q

50

µs

RF Input Frequency Range

(Note 6)

q

850

2000

MHz

RF Input Power Range

900MHz (Note 6)

– 24

16

dBm

1800MHz (Note 6)

–22

16

dBm

RF DC Input Resistance

q

100

175

250

Ω

q

4.8

5.0

5.4

V

BSEL Timing

200

ns

200

ns

Note 1: Absolute Maximum Ratings are those values beyond which the life of

a device may be impaired.

Note 2: The LTC1757A-1 and LTC1757A-2 are guaranteed to meet performance

specifications from 0

°C to 70°C. Specifications over the –30°C to 85°C

operating temperature range are assured by design, characterization and

correlation with statistical process controls.

measured between 1V and 2V.

Note 4: Maximum DAC zero-scale offset voltage that can be applied to PCTL.

Note 5: This is the time from TXEN rising edge 50% switch point to

Note 6: Guaranteed by design. This parameter is not production tested.

overvoltage shutdown.

Note 8: Includes maximum DAC offset voltage and maximum control voltage.

Note 9: Bandwidth is calculated using the 10% to 90% rise time equation:

BW = 0.35/rise time

Note 10: Measured 1

µs after TXEN = HI.

ELECTRICAL CHARACTERISTICS