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AS1121 Datasheet(PDF) 6 Page - ams AG

Part # AS1121
Description  16-Channel LED Driver with Dot Correction and Greyscale PWM
PDF  22 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS1121 Datasheet(HTML) 6 Page - ams AG

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www.austriamicrosystems.com/AS1121
Revision 1.01
5 - 21
AS1121
Datasheet - Electrical Character i s t ics
Timing Characteristics
VCC = +3.1V to +3.6V, TAMB = -40°C to +85ºC. Typical values are at TAMB = +25°C, VCC = 3.3V (unless otherwise specified).
Interface Characteristics
VCC = +3.1V to +3.6V, TAMB = -40°C to +85ºC. Typical values are at TAMB = +25°C, VCC = 3.3V (unless otherwise specified).
IOL
Low-Level Output Current
VCC = 5 V at SDO, XERR
1.0
mA
VLOD
LED Open Detection Threshold
0.3
0.4
V
VIREF
Reference Voltage Output
RIREF = 1k
Ω
1.23
1.27
1.32
V
Thermal Protection
TTWF
Thermal Warn Flag Threshold
125
ºC
TTEF
Thermal Error Flag Threshold
150
ºC
Table 4. Output Tming Characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
tR0
Rise Time
SDO
8
ns
tR1
1
1. Value can be factory trimmed for EMI improvement
OUTn, DC = 3FHEX, RIREF = 1kΩ
25
tF0
Fall Time
SDO
8
ns
tF1
1
OUTn, DC = 3FHEX, RIREF = 1kΩ
25
tPD0
Propagation Delay Time
CLK, SDO
2
2. See Figure 24 on page 16.
15
ns
tPD1
OUT0, OUT1, OUT2, OUT3
2, R
IREF
= 1k
Ω,
turn ON delay
tPD2
OUT0, OUT1, OUT2, OUT3
2, R
IREF
= 1k
Ω,
turn OFF delay
tD
Average Output Delay Time
(can be turend off on request)
OUT4, OUT5, OUT6, OUT7
2
25
ns
OUT8, OUT9, OUT10, OUT11
2
OUT12, OUT13, OUT14, OUT15
2
Table 5. Serial Interface Timing Characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fCLK
Data Shift Clock Frequency
CLK
30
MHz
fGSCLK
Greyscale Clock Frequency
GSCLK
5
MHz
tWH0/tWL0
CLK Pulse Duration
CLK = 1/0
1
16
ns
tWH1/tWL1
GSCLK Pulse Duration
GSCLK = 1/0
2
tbd
ns
tWH2
LD Pulse Duration
LD = 1
1
20
ns
tWH3
OEN Pulse Duration
OEN = 1
2
20
ns
Table 3. Electrical Characteristics (Continued)
Symbol
Parameter
Condition
Min
Typ
Max
Unit



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