Harman Kardon DPR 1001, Service Manual

Page: 114 / 165

LC75725E
Parameter Symbol Conditions
Ratings
Unit
min typ max
Supply voltage
V
DD
V
DD
4.5 5.0 5.5
V
V
FL
V
FL
V
DD
– 45 V
DD
Input high-level voltage
V
IH1
DI, CL, CE, BLK 0.8 V
DD
5.5
V
V
IH2
OSCI 0.8 V
DD
V
DD
Input low-level voltage V
IL
DI, CL, CE, BLK, OSCI 0 0.2 V
DD
V
Guaranteed oscillator range f
OSC
OSCI, OSCO 1.8 3.7 4.9 MHz
Recommended external resistance R
OSC
OSCI, OSCO 1.0 5.6 22 K
Ω
Recommended external capacitance C
OSC
OSCI, OSCO 10 22 47 pF
Low level clock pulse width t
øL
CL Figure 1 0.5 µs
High level clock pulse width t
øH
CL Figure 1 0.5 µs
Data setup time t
ds
DI, CL Figure 1 0.5 µs
Data hold time t
dh
DI, CL Figure 1 0.5 µs
CE wait time t
cp
CE, CL Figure 1 0.5 µs
CE setup time t
cs
CE, CL Figure 1 0.5 µs
CE hold time t
ch
CE, CL Figure 1 0.5 µs
BLK switching time t
c
BLK, CE Figure 3 10 µs
Allowable Operating Ranges
at Ta = –40 to +85°C, V
DD
= 4.5 to 5.5 V, V
SS
= 0 V
Parameter Symbol Conditions
Ratings
Unit
min typ max
Input high-level current
I
IH1
DI, CL, CE, BLK: V
I
= 5.5 V 5
µA
I
IH2
OSCI:V
I
= V
DD
5
Input low-level current I
IL
DI, CL, CE, BLK: V
I
= 0 V –5 µA
V
OH1
S1 to S43: I
O
= 5 mA V
DD
– 2.0
Output high-level voltage V
OH2
G1 to G11: I
O
= 20 mA V
DD
– 2.0 V
V
OH3
OSCO: I
O
= 0.5 mA V
DD
– 2.0
Output low-level voltage V
OL
OSCO: I
O
= –0.5 mA 2.0 V
Output off voltage V
OFF
S1 to S43, G1 to G11: V
FL
= V
DD
– 45 V,
V
DD
– 44 V
Outputs off
Pull-down resistors R
PD
S1 to S43, G1 to G11: V
FL
= V
DD
– 45 V,
50 100 200 k
Ω
V
O
= V
DD
Oscillator frequency f
OSC
OSCI, OSCO: R
OSC
= 5.6 k
Ω
, C
OSC
= 22 pF 3.7 MHz
Hysteresis voltage V
H
DI, CL, CE, BLK 0.1 V
DD
V
Current drain I
DD
V
DD
: Outputs open. Display off,
5 mA
f
OSC
= 3.7 MHz, V
FL
= V
DD
– 45 V
Electrical Characteristics
in the Allowable Operating Ranges
114
DPR1001 harman/kardon