Digitally Controlled Analog I/O Processor
3
MX839 PRELIMINARY INFORMATION
1 Block Diagram
MOD1 IN
MUTE1
0 to 12dB x 0.4dB Steps
MOD1OUT
MUTE2
MOD2 IN
0 to 16dB x 0.2dB Steps
MOD2OUT
HIGH COMPARATOR
A/D REG1
LOW COMPARATOR
A/DIN1
A/DIN2
A/DIN3
A/DIN4
4:1
MUX
A/D
10
bit
HIGH COMPARATOR
A/D REG2
LOW COMPARATOR
HIGH COMPARATOR
A/D REG3
LOW COMPARATOR
HIGH COMPARATOR
A/D REG4
LOW COMPARATOR
DACOUT1
DAC1
8/10 bit
DACOUT2
DAC2
8/10 bit
DACOUT3
DAC3
8/10 bit
1:4
MUX
ADC COMP IRQ
REPLY DATA
COMMAND DATA
CS
SERIAL CLOCK
XTAL/CLOCK
XTAL
4-wire
SERIAL INTERFACE
AND LOGIC
CONTROL
CLOCK
OSCILLATOR
AND DIVIDERS
AV
DD
V
SS
V
BIAS
DV
DD
DV
DD
AV
DD
Figure 1: Block Diagram
© 1998 MXxCOM Inc.
www.mxcom.com Tele: 800 638-5577 336 744-5050 Fax: 336 744-5054
Doc. # 20480164.002
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