参数资料
型号: DS3881E+T&R
厂商: Maxim Integrated
文件页数: 22/28页
文件大小: 0K
描述: IC CCFL CONTROL 24TSSOP
标准包装: 1,000
类型: CCFL 控制器
频率: 40 ~ 100 kHz
电流 - 电源: 12mA
电源电压: 4.75 V ~ 5.25 V
工作温度: -40°C ~ 105°C
封装/外壳: 24-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 24-TSSOP
包装: 带卷 (TR)
Single-Channel Automotive CCFL Controller
Table 7. EMI Control Register (EMIC) [Shadowed-EEPROM, F6h]
BIT
R/W
FACTORY
DEFAULT
NAME
FUNCTION
0
R/W
0
SS0
SS1
LAMP OSCILLATOR SPREAD-SPECTRUM MODULATION SELECT
SS0 SELECTED LAMP FREQUENCY SPREAD
0
0
0
1
SPREAD-SPECTRUM DISABLED
±1.5%
1
R/W
0
SS1
1
0
±3.0%
1
1
±6.0%
Lamp Oscillator Spread-Spectrum Modulation Select
2
R/W
0
SSM
0 = Triangular modulation.
1 = Pseudorandom modulation.
3
?
?
RSVD
Reserved. This bit should be set to zero.
Lamp Frequency Step Enable. Logically ORed with the step invoked.
4
R/W
0
STEPE
0 = Lamp operates at nominal frequency.
1 = Frequency step invoked.
LAMP OSCILLATOR FREQUENCY STEP SELECT
SELECTED LAMP
SPREAD-SPECTRUM
5
R/W
0
FS0
FS2
FS1
FS0
FREQUENCY STEP
MODULATION RATE
(SS0 = 0 AND SS1= 0)
(SS0 AND/OR SS1 = 1)
0
0
0
0
0
1
Step Up 1%
Step Up 2%
Lamp Frequency x4
Lamp Frequency x2
6
R/W
0
FS1
0
0
1
1
0
1
Step Up 3%
Step Up 4%
Lamp Frequency x1
Lamp Frequency x1/2
1
1
0
0
0
1
Step Down 1%
Step Down 2%
Lamp Frequency x1/4
Lamp Frequency x1/8
7
R/W
0
FS2
1
1
0
Step Down 3%
Lamp Frequency x1/16
1
1
1
Step Down 4%
Lamp Frequency x1/32
22
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