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ST-SX4 音 频 选 择 切 换 器
● 4 个非平衡音频来源中选择 1 个
● 遥控区域音频选择器
● 单一控制组的远程转换
● 所有固体状态的音频转换
● 立体声转换的 slave 性能
● 推荐电源 : PS24AX
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AUDIO
Input and Output Level : -10 dBV
Gain : Unity
Headroom : 23 dB
THD+N : < 0.1% Typ. 0.05%
Frequency Response:
15 Hz to 40 kHz (± 0.5 dB)
Input Impedance:
100 kΩ, unbalanced
Output Impedance:
< 50 Ω, unbalanced
Crosstalk : Below noise floor
Off-Channel Attenuation:
> 85 dB @ 1 kHz
> 80 dB @ 10 kHz
> 75 dB @ 20 kHz
Residual Noise:
< -70 dB (referred to -10 dBV)

CONTROL
Control Input Resistance:
10 kΩ (pullup to +15 Vdc)
Control Input:
Single terminal to be connected to ground terminal to select desired channel.
Input Selected    Resistance Value
 None                 0 Ω (short to GND)
  1                             2.7 kΩ
  2                             6.8 kΩ
  3                             22 kΩ
  4                              None
Ambient Operating Environment:
0° C to 55° C
Power Requirement:
GROUND-REFERENCED, 24 Vdc @ 45 mA
Shipping Weight : 0.21 lbs.
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