CMX808AE3 CML Microcircuits, CMX808AE3 Datasheet - Page 20

• Manufacturer Part Number: CMX808AE3
• Description: Family Radio CTCSS Type 2 Encoder and Decoder
• Manufacturer: CML Microcircuits

Family Radio CTCSS 'Type 2' Encoder and Decoder
1.7.1
For the following conditions unless otherwise specified:
Xtal Frequency = 4.0MHz, V
Notes:
t
t
t
t
t
t
CSE
CSH
HIZ
CSOFF
NXT
CK
1999 Consumer Microcircuits Limited
Electrical Performance (continued)
Timing Diagrams
1. Depending on the command, 1 or 2 bytes of COMMAND DATA are transmitted to the peripheral
2. Data is clocked into and out of the peripheral on the rising SERIAL CLOCK edge.
3. Loaded commands are acted upon at the end of each command.
4. To allow for differing µController serial interface formats "C-BUS" compatible ICs are able to
Parameter
"Inter-Byte" Time
"Clock-Cycle" time
"CS-Enable to Clock-High"
Last "Clock-High to CS-High"
"CS-High to Reply Output 3-state"
"CS-High" Time between transactions
MSB (Bit 7) first, LSB (Bit 0) last. REPLY DATA is read from the peripheral MSB (Bit 7) first,
LSB (Bit 0) last.
work with either polarity SERIAL CLOCK pulses.
DD
= 3.0V to 5.0V, Tamb = -40°C to +85°C.
Figure 6 "C-BUS" Timing
20
Notes
Min.
2.0
4.0
2.0
4.0
2.0
-
Typ.
Max.
2.0
-
-
-
-
-
Units
CMX808A
µs
µs
µs
µs
µs
µs
D/808A/5