参数资料
型号: ATR4256-TKSY
厂商: Atmel
文件页数: 9/21页
文件大小: 0K
描述: IC FREQ SYNTH RADIO TUNER 20SSOP
产品变化通告: ATR425x Obsolescence 03/Apr/2012
标准包装: 830
功能: 频率合成器
RF 型: 广播无线电
次要属性: 缓冲输出
封装/外壳: 20-SOIC(0.209",5.30mm 宽)
包装: 管件
ATR4256
4.8
DAC3 (Pin 5)
The DAC3 output voltage can be controlled by B66 to B68 (bits 0 to 2 of DAC3) as follows:
Table 4-8.
DAC3 Offset Setting
DAC3 Offset, Approximately
0.55V
1.25V
1.90V
2.60V
3.30V
4.10V
4.80V
5.45V
Figure 4-6.
Internal Components at DAC3
B68
0
0
0
0
1
1
1
1
B67
0
0
1
1
0
0
1
1
B66
0
1
0
1
0
1
0
1
VS
DAC3
4.9
EN, DATA, CLK (Pins 16 to 18)
All functions can be controlled via a 3-wire bus consisting of ENABLE, DATA and CLOCK. The
bus is designed for microcontrollers which operate with 3V supply voltage. Details of the data
transfer protocol are shown in “3-wire Bus Description” on page 12 .
Figure 4-7.
Internal Components at EN, DATA, CLK
V5
EN
DATA
CLK
9
4867D–AUDR–01/08
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