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参数资料
| 型号： | AS1112 EB |
| 厂商： | ams |
| 文件页数： | 14/20页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL AS1112 |
| 标准包装： | 1 |
| 电流 - 输出 / 通道： | 0.5 ~ 100 mA |
| 输出及类型： | 16，非隔离 |
| 输出电压： | 0 ~ 15 V |
| 特点： | 过热保护，开路 LED，短路 LED，诊断 |
| 输入电压： | 3 ~ 5.5 V |
| 已供物品： | 板 |
| 已用 IC / 零件： | AS1112 |
AS1112
Datasheet - D e t a i l e d D e s c r i p t i o n
Figure 14. Greyscale Data Input Timing Diagram
Dot Correction Mode
Data Input Cycle
MODE
t H3
1st Greyscale Mode
Data Input Cycle After Dot Correction Input
t SU3
Following Greyscale Mode
Data Input Cycle
LD
t WH2
SDI
CLK
DC n-1
LSB
t H2
96
t SU2
GS n
MSB
t H0
1
t SU1
192
GS n
LSB
GS n+1
MSB
1
t PD0
GS n+1
LSB
192
SDO
DC n-1
MSB -1
DC n-1
MSB
x
x
x
SID n
MSB
SID n
MSB-1
SID n
MSB-2
SID n
LSB
SID n
MSB
Status Information Data (SID)
The AS1112 contains an integrated status information register, which can be accessed in greyscale mode (MODE = GND). Once the LD signal
latches the data into the greyscale register, the input shift register data is replaced with status information data (see Figure 15) .
Open, shorted LED, temperature warning and overtemperature flags as well as the dot-correction registers can be read out at pin SDO. The sta-
tus information data packet is 192 bits wide. Bits 191:176 and 31:16 contain the open LED detection status of each channel (either 191:176 or
31:16 can be used for readout). Bit 175 contains the thermal error flag status. Bit 174 contains the temperature warning flag. Bits 167:72 contain
the data of the dot-correction register. Bit 15:0 contains the LED shorted flags. The remaining bits are reserved. The complete status information
Figure 15. Status Information Data Packet Format
MSB
LSB
191
176
175
174
168
167
72
71
16:31
0:15
LOD15
...
LOD0
TEF
TWF
...
X
DC15.
...
DC0.
X
...
LOD
LSD
Open LED
Detect Data
Overtemperature
Flag
DC Values
Bit #
0:15
16:31
32:71
72:167
Description
LED Short Detection, LSD
LED Open Detection (Optional, same as bits 176:191), LOD
Undefined
Dot Correction Readback (16 x 6 Bit)
Bit #
168:173
174
175
176:191
Description
Undefined
Temperature Warning Flag (TWF, 125oC, typ)
Temperature Error Flag (TEF, 150oC, typ)
LED Open Detection, LOD
Greyscale PWM Operation
The falling edge of the OEN signal initiates a greyscale PWM cycle. The first GSCLK pulse after the falling edge of OEN increments the
greyscale counter by one and switches on any OUT n whose greyscale value does not equal zero. Each subsequent rising edge of GSCLK incre-
ments the greyscale counter by one.
The AS1112 compares the greyscale value of each OUT n channel with the greyscale counter value. All OUT n whose greyscale values equal the
counter values are switched off. A OEN = 1 signal after 4096 GSCLK pulses resets the greyscale counter to zero and completes a greyscale
Revision 1.13
13 - 19
相关PDF资料 |
PDF描述 |
|---|---|
| AS1115 DB-YELLOW | BOARD DEMO AS1115 YELLOW |
| AS1116 DB-YELLOW | BOARD DEMO AS1116 YELLOW |
| AS3691A EB | BOARD EVAL AS3691A |
| AS5030 DB | BOARD DEMO AS5030 |
| AS5048-DB-1.0 | BOARD DEMO AS5048 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AS1112-XXX-I-A1-D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
| AS1112-XXX-I-A1-S | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
| AS1112-XXX-I-A2-D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
| AS1112-XXX-I-A2-S | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
| AS1112-XXX-I-A3-D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
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