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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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WM8994ECS/R датащи(PDF) 15 Page - Cirrus Logic |
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WM8994ECS/R датащи(HTML) 15 Page - Cirrus Logic |
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15 / 363 page  WM8994 Rev 4.6 15 INPUT PIN RESISTANCE Test Conditions TA = +25 oC. With the exception of the condition(s) noted above, the following electrical characteristics are valid across the full range of recommended operating conditions. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT B1 PGA Input Resistance Differential Mode See note 5 See “Applications Information ” for details of Input resistance at all PGA Gain settings. Gain = -16.5dB (INnx_VOL=00h) RIN - + IN1L, IN2L, IN1R or IN2R RIN IN1LN, IN2LN, IN1RN or IN2RN IN1LP, IN2LP, IN1RP or IN2RP 53 k Gain = 0dB (INnx_VOL=0Bh) 25 k Gain = +30dB (INnx_VOL=1Fh) 1.3 k B2 PGA Input Resistance Single-Ended Mode See note 5 See “Applications Information ” for details of Input resistance at all PGA Gain settings. Gain = -16.5dB (INnx_VOL=00h) - + IN1L, IN2L, IN1R or IN2R RIN IN1LN, IN2LN, IN1RN or IN2RN VMID 58 k Gain = 0dB (INnx_VOL=0Bh) 36 k Gain = +30dB (INnx_VOL=1Fh) 2.5 k B3 Line Input Resistance See note 5 IN1LP to MIXINL, or IN1RP to MIXINR Gain = -12dB (IN1xP_MIXINx_VOL=001) IN1LP or IN1RP MIXINL or MIXINR RIN + 56 k IN1LP to MIXINL, or IN1RP to MIXINR Gain = 0dB (IN1xP_MIXINx_VOL=101) 17 k IN1LP to MIXINL, or IN1RP to MIXINR Gain = +6dB (IN1xP_MIXINx_VOL=111) 9.8 k IN1LP to MIXINL, or IN1RP to MIXINR Gain = +15dB (IN1xP_MIXINx_VOL=111, IN1xP_MIXINx_BOOST=1) 3.7 k IN1LP to SPKMIXL, or IN1RP to SPKMIXR (SPKATTN = -12dB) IN1LP or IN1RP SPKMIXL or SPKMIXR RIN + 89 k IN1LP to SPKMIXL, or IN1RP to SPKMIXR (SPKATTN = 0dB) 27 k IN2LN, IN2RN, IN2LP or IN2RP to MIXOUTL or MIXOUTR Gain = -21dB (*MIXOUTx_VOL=111) IN2LN, IN2RN, IN2LP or IN2RP MIXOUTL or MIXOUTR RIN + 150 k IN2LN, IN2RN, IN2LP or IN2RP to MIXOUTL or MIXOUTR Gain = -12dB 59 k |
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