X9470 Datasheet, PDF (8/24 Pages) Xicor Inc. – RF Power Amplifier (PA) Bias Controller

X9470
AC SPECIFICATIONS
Symbol
f_SCL
t_IN(10)
t_AA(10)
t_BUF(10)
t_LOW
t_HIGH
t_SU:STA
t_HD:STA
t_SU:DAT
t_HD:DAT
t_SU:STO
t_DH(10)
t_R(10)
t_F(10)
Cb⁽¹⁰⁾
Parameter
SCL Clock Frequency
Pulse width Suppression Time at inputs
SCL LOW to SDA Data Out Valid
Time the bus must be free before a new transmission can start
Clock LOW Time
Clock HIGH Time
Start Condition Setup Time
Start Condition Hold Time
Data In Setup Time
Data In Hold Time
Stop Condition Setup Time
Data Output Hold Time
SDA and SCL Rise Time
SDA and SCL Fall Time
Capacitive load for each bus line
Note: (12) Cb = total capacitance of one bus line in pF.
TIMING DIAGRAMS
Bus Timing
t_F
t_HIGH
t_LOW
t_R
SCL
SDA IN
t_SU:ST
t_HD:STA
t_SU:DAT
SDA OUT
t_HD:DAT
t_AA t_DH
Min.
0
50
0.1
1.3
1.3
0.6
0.6
0.6
200
200
0.6
50
20 +.1Cb⁽¹²⁾
20 +.1Cb⁽¹²⁾
Max.
400
0.9
300
300
400
Unit
kHz
ns
µs
µs
µs
µs
µs
µs
ns
ns
µs
ns
ns
ns
pF
t_SU:STO
t_BUF
Write Cycle Timing
SCL
SDA
8th Bit of Last Byte
ACK
t_WC
Stop
Condition
Start
Condition
8
FN8204.0
March 8, 2005