Dual SPM Detector
Ch 1
BANDPASS
FILTER
PULSE
MEASUREMENT
LOGIC
Ch1 AMP IN (+)
Ch 1
INPUT
AMPLIFIER
GAIN
ADJUST
INTERNAL
COMPARATOR
THRESHOLD
Ch2 AMP IN (+)
Ch 2
COMPARATOR
TONE FOLLOWER
MODE
All trademarks and service marks are held by their respective companies.
12kHz/16kHz
SYSTEM
MX641 Preliminary Information
Doc. # 20480115.004
Ch 2 AMP OUT
+
www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054
12kHz/16kHz
SYSTEM
Ch 1
COMPARATOR
-
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
CLOCK OUT
XTAL/CLOCK
GENERATOR
BUFFER
CLOCK
DIVIDERS
INTERNAL
CLOCKS
PRESET LEVEL
Page 3 of 16
CHIP SELECT
SERIAL
INPUT
LOGIC
LEVEL/
SYSTEM
SETTING
12kHz/16kHz
SYSTEM
Figure 1: Block Diagram
SERIAL
DATA
SERIAL
CLOCK
INTERNAL
COMPARATOR
THRESHOLD
SYSTEM SELECT
Ch 2
INPUT
AMPLIFIER
GAIN
ADJUST
Ch2 AMP IN (-)
Ch 2
BANDPASS
FILTER
+
+
-
-
+
-
ã
2001 MX-COM, Inc.
CLOCK IN
V
DD
V
BIAS
V
SS
TONE FOLLOWER
MODE
XTAL/CLOCK
1. Block Diagram
XTAL
Ch 1 AMP OUT
Ch 1
OUTPUT
PULSE
LENGTH
LOGIC
PACKET
MODE
Ch1 AMP IN (-)
PULSE
GENERATOR
AND
DIVIDER
OUTPUT
SELECT
CIRCUITS
CHANNEL 1
OUTPUT
ENABLE
OUTPUT
SELECT
CHANNEL 2
PULSE
GENERATOR
AND
DIVIDER
PACKET
MODE
PULSE
MEASUREMENT
LOGIC
PULSE
LENGTH
LOGIC
OUTPUT
SELECT
CIRCUITS
Ch 2
OUTPUT
CMLMICRO [ CML MICROCIRCUITS ]
