AMC7834 Datasheet, PDF (15/93 Pages) Texas Instruments – AMC7834 12-Bit Integrated Power-Amplifier Monitor and Control System with Temperature, Current and Voltage Supervision Capabilities

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AMC7834
SLAS972B – NOVEMBER 2014 – REVISED MARCH 2016
6.11 Switching Characteristics—General Specifications
The electrical ratings specified in this section apply to all specifications in this document, unless otherwise noted. These
specifications are interpreted as conditions that do not degrade the device parametric or functional specifications for the life of
the product containing it. AV_DD = DV_DD = 5 V, AV_CC = 5 V, AV_SS = –5 V, IOV_DD = 1.8 to 3.3 V, PAV_DD = 5 V, AGND = DGND =
0 V, external 2.5 V reference, DAC output range = 0 to 5 V for all DACs, no load on the DACs, current sense inputs common
mode at 48 V, T_A = –40°C to 105°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
PA_ON OUTPUT⁽¹⁾
PA_ON OFF state enable
Measured from AV_SS alarm event, C_L = 1 nF
Measured from SLEEP 0 to 1 transition, C_L = 1
nF
1 ms
1 ms
PA_ON ON state enable
RESET REQUIREMENTS⁽¹⁾
Measured from SLEEP 1 to 0 transition, C_L = 1
nF
0.5 ms
Reset delay
Delay to normal operation from hardware reset
Delay to normal operation from software reset
100
250
µs
10
µs
Reset pulse width
20
ns
(1) Not tested during production. Specified by design and characterization.
t(IAG)
CS
SCLK
tsu(CS)
tp
tPL
tPH
th(CS)
SDI
CS
SCLK
t(IAG)
Bit 23
Bit 1
Bit 0
tsu
th
Figure 1. Serial Interface Write Timing Diagram
tsu(CS)
t(ODZ)
th(CS)
tP
tPL
tPH
SDI
Bit 23
Bit 8
SDO
tsu
th
Bit 7
Bit 0
t(OZD)
t(OD)
Figure 2. Serial Interface Read Timing Diagram
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