PCA84C846 查看數據表（PDF） - Philips Electronics

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PCA84C846

Microcontrollers for TV tuning control and OSD applications

Philips Electronics 

Philips Semiconductors

Microcontrollers for TV tuning

control and OSD applications

Preliminary specification

PCA84C646; PCA84C846

handbook, full pagewidth

f PWM = fxtal

3

6 or 7-BIT PWM DATA LATCH

P6LVL/P7LVL

(1-BIT)

DP0n data

I/O

PWMnE

Q

6 or 7-BIT DAC PWM

CONTROLLER

Q

DP0n/PWM0n

MED177

Fig.4 Block diagram of 6-bit or7-bit PWM DAC.

handboofk,xftuall pagewidth

3

64

1

or

128

00

2

3

01

m

63

or

127

decimal value PWM data latch

m

m+1 m+2

64

1

or

128

MLC261

1995 Jun 15

Fig.5 Example PWM0n output patterns (P6LVL/P7LVL = 0).

9

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