JBL MS-8, Service Manual

Page: 80 / 110

3
LTC1694
1694fa
TEMPERATURE (
°
C)
–50
PULL-UP CURRENT (
µ
A)
350
325
300
275
250
225
200
175
150
125
100
0 50 75
1694 G01
–25 25 100 125
V
CC
= 6V
V
CC
= 5V
V
CC
= 2.7V
TEMPERATURE (
°
C)
–50
BOOSTED PULL-UP CURRENT (mA)
3.50
3.25
3.00
2.75
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0 50 75
1694 G02
–25 25 100 125
V
CC
= 6V
V
CC
= 5V
V
CC
= 2.7V
Boosted Pull-Up Current vs
SMBus Voltage
TEMPERATURE (
°
C)
–50
INPUT THRESHOLD VOLTAGE (V)
0.90
0.85
0.80
0.75
0.70
0.65
0.60
0.55
0.50
0.45
0.40
0
50
75
1694 G04
–25 25 100
125
V
CC
= 6V
V
CC
= 2.7V
V
CC
= 5V
TEMPERATURE (
°
C)
–50
SLEW RATE DETECTOR THRESHOLD (V/
µ
s)
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
0 50 75
1694 G05
–25
25 100 125
V
CC
= 6V
V
CC
= 2.7V
V
CC
= 5V
Slew Rate Detector Threshold
Standby Mode Supply Current
TEMPERATURE (
°
C)
–50
SUPPLY CURRENT (
µ
A)
100
1694 G06
0 50
100
90
80
70
60
50
40
30
20
–25 25 75 125
V
CC
= 6V
V
CC
= 2.7V
V
CC
= 5V
Pull-Up Current at SMBus = 0V Boosted Pull-Up Current
SMBus VOLTAGE (V)
0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
3 5
LT 1694 G03
1 2
4 6 7
BOOSTED PULL-UP CURRENT (mA)
V
CC
= 6V
V
CC
= 5V
V
CC
= 2.7V
Input Threshold Voltage
TYPICAL PERFOR A CE CHARACTERISTICS
U W
V
CC
(Pin 1): Power Supply Input. V
CC
can range from 2.7V
to 6V and requires a 0.1
µ
F bypass capacitor to GND.
GND (Pin 2): Ground.
NC (Pin 3): No Connection.
SMBus2 (Pin 4): Active Pull-Up for SMBus.
SMBus1 (Pin 5): Active Pull-Up for SMBus.
U U U
PI FU CTIO S
MS-8
79