Mobile-Radio Analog Controller

4

_______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

SYMBOL

V

Input Voltage Low

V

Input Voltage High

V

2.42

Internal DAC Reference

µA

200

PS Bias Sink Current

V

1.87

PS Bias Voltage Output

V

0.96

1.028

1.1

Output Voltage

mV

100

300

Minimum Peak Level Detected

µs

10

20

Lowpass-Filter Time Constant

Ω

200

Pull-Down Input Resistance

µA

50

100

180

Current Source

-0.44

-6

V

Maximum Peak Level Detected

mV

150

Offset Voltage

V/V

-0.53

Power-Sense Amp Gain (PGA)

UNITS

MIN

TYP

MAX

PARAMETER

pF

10

Inpt Capacitance

k

Ω

20

Input Resistance

µA

±1

Input Current

ns

100

CS High to DOUT Disable

ns

200

434

SCLK Pulse Width Low

ns

200

434

SCLK Pulse Width High

ns

150

SCLK High to DOUT Valid

ns

100

CS Low to DOUT Valid

ns

20

CS Low to SCLK High

ns

0

DIN to SCLK Hold

ns

100

DIN Valid to SCLK Setup

ns

500

ADC Data Output Delay After

End of ADC Conversion

(Figure 4b)

V

0.4

Output Voltage Low

V

Output Voltage High

RPS, FPS1, FPS2 pulled to AGND when not

selected

Figure 3b

Reflected transmit, classes 2, 3, 4

Reflected transmit, class 1

RPS, FPS1, FPS2 to ADC input

Forward transmit

CONDITIONS

Digital inputs

PSDCTRL, PSDWDW

Excluding PSDCTRL, PSDWDW

Digital Outputs (DOUT, BANT, SDG)

TIMING SPECIFICATIONS (Figure 4)

Digital Inputs (CS, SCLK, DIN, PKWDW, ADCCTRL, PSDWDW, PSDCTRL)

SERIAL-LOGIC INTERFACE

REFERENCE

TRANSMIT POWER SENSE

RSSI CIRCUIT