5

WL800

ELECTRICAL CHARACTERISTICS (continued)

These characteristics are guaranteed over the following conditions (unless otherwise stated):

T

= 2.7V to 3.6V

Characteristic

Value

Unit

Condition

MIN

TYP

MAX

LOCK DETECT CIRCUIT

Smoothing capacitor charge/

80

110

150

µA

Determined by application.

discharge current

Threshold voltage

Vcc-0.3

V

On smoothing capacitor

Output high voltage

1.8

Vcc

V

I out = 10

µA

Output low voltage

Vee

0.5

V

I out = 0

µA

PHASE DETECTOR AND

CHARGE PUMP

Comparison frequency

1

MHz

Divided crystal reference

Charge pump output current

±1

mA

Rpin 8 = 10k

Up down current matching

5

%

Reference voltage

V

V

V

CHARGE PUMP OP-AMP

First Stage:

High output voltage

2.4

V

Low output voltage

0.3

V

Second Stage:

Filter drive amplifier output current

±1mA

Filter drive amp output swing

0.77

Vp-p

PRESCALER

Input drive voltage

40

200

mV rms

Maximum operating frequency

3

GHz

Input Impedance

330

Ω

0.5pF

TRANSMIT DATA INPUT

Logic low

-60

-100

µA

Rsource=20k

Logic high

+60

+100

µA

TX DATA OUT

Logic 0 output current

25

50

100

µA

Set by external resistor on pin 7

Logic 1 output current

200

nA

Leakage Current

Output current in receive mode

25

µA

Equal to 0.5 mod current