WL800 查看數據表（PDF） - Zarlink Semiconductor Inc

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WL800

2.5GHz Frequency Synthesiser

Zarlink Semiconductor Inc 

WL800 Preliminary Information

Electrical Characteristics (continued)

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

TAMB = -20°C, to +85°C, Vcc = 2.7V to 3.6V

Characteristic

MOD. CURRENT INPUT

Mod current set pin current

COMPENSATION CAP PIN

Compensation current

Compensation current matching

Value

Unit

MIN

TYP

MAX

25

µA

-25

µA

2

%

Condition

Set by external resistor on pin 7.

R = 47k

Set by external resistor on

pin 7. R=47k.

Compensation capacitor 8.2nF

Compensation capacitor voltage

CPRef - CPRef CPRef

V

0.02

+0.02

Compensation capacitor voltage

88

98

+110

mV

-120

-98

-88

mV

VCAP CHARGE

Settling Time

Charging Current

100

µs

20

mA

Offset Voltage

15

mV

Receive mode

1 MHz data, 32bits ‘0’

1 MHz data, 32bits ‘1’

Receive mode

Receive mode.

Vcap initially at 0 V.

Receive mode.

COMPENSATION VtoI

(CAPBUFFER+RCOMP)

Compensation current into Loop

Filter

Max. Compensation current

+52.08

-52.08

1.666

nA

Per 1us of databit 0

nA

Per 1us of databit 1

mA

for 32 bits(1) at 1MHz

CAPACITOR BUFFER

Offset Voltage

External Resistor RCOMP

15

58000

mV

Ohms

Note: 1. Standby to operate time refers to the time for internal current references to become operational.

6

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