GMSK Packet Data Modem and RF Transceiver
CMX990
For the following conditions unless otherwise specified:
Clock Frequency = 19.2MHz, VDDH = 3.0V to 3.6V, TAMB = -40°C to +85°C.
Notes
Min.
Typ.
Max.
–
Unit
Parallel Interface Timings (ref. Figure 24)
tACSL
tAH
Address valid to CSN low time
Address hold time
0
10
0
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
ns
–
ns
tCSH
CSN hold time
–
ns
tCSHI
tCSRWL
tDHR
tDHW
tDSW
tRHCSL
tRACL
tRARL
tRL
CSN high time
6
–
clock cycles
CSN to WRN or RDN low time
Read data hold time
0
–
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
0
–
Write data hold time
0
–
Write data setup time
90
0
–
RDN high to CSN low time (write)
Read access time from CSN low
Read access time from RDN low
RDN low time
–
18
18
–
175
145
–
–
200
–
tRX
RDN high to D0-D7 3-state time
WRN high to CSN low time (read)
WRN low time
50
–
tWHCSL
tWL
0
200
–
Notes:
18. With 30pF max to VSS on D0 - D7 pins. Data valid at greater of: tRARL + tCSRWL or
tRACL
.
TBD
Figure 31 Typical Bit Error Rate
ã 2004 CML Microsystems Plc
76
D/990/1
CMLMICRO [ CML MICROCIRCUITS ]
