PBM3960-1 Просмотр технического описания (PDF) - Ericsson
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PBM3960-1 Datasheet PDF : 10 Pages
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PBM 3960/1
Electrical Characteristics
Electrical characteristics over recommended operating conditions.
Parameter
Logic Inputs
Reset logic HIGH input voltage
Reset logic LOW input voltage
Logic HIGH input voltage
Logic LOW input voltage
Reset input current
Input current, other inputs
Input capacitance
Ref.
Symbol fig Conditions
VIHR
VILR
VIH
VIL
I
IR
I
I
V <V <V
SS
IR
DD
V <V<V
SS
I
DD
Min
Typ
3.5
2.0
-0.01
-1
3
Internal Timing Characteristics
Address setup time
tas
2 Valid for A0, A1
60
Data setup time
tds
2 Valid for D0 - D7
60
Chip select setup time
t
2
70
cs
Address hold time
t
2
ah
Data hold time
tdh
2
Chip select hold time
tch
2
Write cycle length
tWR
2
50
Reset cycle lenght
tR
3
80
Reference Input
Input resistance
R
Ref
6
9
Logic Outputs
Logic HIGH output current
IOH
VO = 2.4 V
-13
Logic LOW output current
IOL
VO = 0.4 V
1.7
5
Write propagation delay
tpWR 2 From positive edge of WR.
30
outputs valid, C = 120 pF
load
Reset propagation delay
tpR 3 From positive edge of Reset to
60
outputs valid, Cload = 120 pF
DAC Outputs
Nominal output voltage
Resolution
Offset error
Gain error
Endpoint nonlinearity
Differential nonlinearity
Load error
Power supply sensitivity
Conversion speed
Reset open, VRef = 2.5 V
VDA
0
7
7
0.2
7
0.1
7
0.2
5, 6
0.2
(VDA, unloaded - VDA, loaded)
0.1
Rload = 2.5 kΩ, Code 127 to DAC
Code 127 to DAC
0.1
4.75 V < V < 5.25 V
DD
tDAC 2 For a full-scale transition to ±0.5 LSB
3
of final value, Rload = 2.5 kohm, Cload = 50 pF.
Max
Unit
V
0.1
V
V
0.8
V
1
mA
1
µA
pF
ns
ns
ns
0
ns
0
ns
0
ns
ns
ns
kΩ
-5
mA
mA
100
ns
150
ns
VRef- 1LSB V
Bits
0.5
LSB
0.5
LSB
0.5
LSB
0.5
LSB
0.5
LSB
0.3
LSB
8
µs
3
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