参数资料
型号: MC44BS373CAFCEVK
厂商: Freescale Semiconductor
文件页数: 3/52页
文件大小: 0K
描述: KIT EVAL FOR BS373CAFC 16PIN
标准包装: 1
主要目的: 音频视频集成调制器
已用 IC / 零件: MC44BS373CA
MC44BS373CA Data Sheet
I2C Programming
Table 15 lists the UHF settings used.
Table 16 lists the other settings used.
Table 17 lists settings of fields X2, X1, and X0, used to set the device into test mode 1 and to control the
VHF range.
NOTE
Test modes 1 and 2 are intended for manufacturing test purposes only and
cannot be used for normal applications, except for VHF range (states 1.b
to 1.e).
Table 15. UHF Settings
Bit
Value
Setting
UHF Oscillator
OSC
0
Normal operation
1
UHF oscillator disabled (oscillator and PLL sections bias turned off)
Modulator Output Attenuation
ATT
0
Normal operation
1
Modulator output attenuation (sound and video modulators sections bias turned off)
Table 16. Other Settings
Bit
Value
Setting
Sound PLL
SREF
0
Sound reference frequency = 31.25 kHz.
1
Sound reference frequency = 62.5 kHz.
Logic Output Port
LOP
0
LOP pin is low voltage.
1
LOP pin is high impedance.
Standby Mode
OSC
SO
ATT
1, 1, 1
Puts the MC44BS373CA into standby mode. See Section 15.3, “Standby Mode,” for
more information.
Table 17. Write Mode—Test Mode 1 and VHF Range
X2
X1
X0
State
Description
0
1.a
Normal operation
0
1
1.b
RF frequency divided for low-frequency testing or VHF range: RF/2
010
1.c
RF/4
011
1.d
RF/8
100
1.e
RF/16
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