TB2118 查看數據表（PDF） - Toshiba

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生产厂家

TB2118

High Speed PLL For DTS (Bi−CMOS Integrated Circuit Silicon Monolithic)

Toshiba 

Pin Function

Pin

No.

Symbol

Pin Name

20

AM CP

AM charge

pump output

18

FM CP

FM charge

pump output

Function And Operation

Charge pump output for AM

・Serial data input:

When AM / FM = "1" error output

from the phase comparator is output

as constant current.

fREF > fSIG: (-) current output

fREF = fSIG: High impedance

fREF < fSIG: (+) current output

・Serial data:

Output current can be switched using

CR0 and CR1 bits.

・Normally (when using AM op-amp), set

the OP SEL bit to "1".

Charge pump output for FM

・Serial data input:

When AM / FM = "0" error output

from the phase comparator is output

as constant current.

fREF > fSIG: (-) current output

fREF = fSIG: High impedance

fREF < fSIG: (+) current output

・Serial data:

Output current can be switched using

CR0 and CR1 bits.

・Normally (when using FM op-amp), set

the OP SEL bit to "0".

TB2118F

Remarks

VDD

Inverter amp

19

5

2002-10-30

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