参数资料
型号: SI4770MODULE-A-EVB
厂商: Silicon Laboratories Inc
文件页数: 30/62页
文件大小: 0K
描述: EVAL MODULE AM/FM CE SI4770
特色产品: Si477x Pro-Audio, High-Performance AM/FM Receiver and HD Radio Tuner
标准包装: 1
类型: 接收器
频率: 520kHz ~ 1.71MHz,64MHz ~ 108MHz
适用于相关产品: Si4770
已供物品: 2 个板,软件
相关产品: 336-2268-ND - IC RECEIVER AM/FM CE HP
其它名称: 336-2267
Si477x-EVB
6.3.3. Headphone Amplifier/Buffer
Left and Right audio outputs are buffered and lowpass filtered by on-board amplifiers in Figure 33. “Audio Output”.
The software automatically selects the L/R audio-band output when AM or FM modes are selected. The left
channel/MPX output is selected in MPX mode only.
Unbuffered L/R outputs are available at the debug header J48.
Note: Use L/R outputs directly from tuner for THD, SINAD, and stereo imbalance measurements. The headphone amplifier
may degrade performance.
The analog L/R and MPX outputs are available at two 3.5 mm jacks. The function of each jack varies by baseboard
revision.
The left jack is a direct, dc-coupled L/R/MPX output from the tuner. This output should be used for all low-distortion
laboratory measurements. The right jack is an ac-coupled, unity-gain-buffered L/R output for listening through
headphones or powered speakers.
Figure 33. Audio Output
30
Rev. 0.4
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