전자부품 데이터시트 검색엔진 |
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CS8130 데이터시트(PDF) 3 Page - Cirrus Logic |
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CS8130 데이터시트(HTML) 3 Page - Cirrus Logic |
3 / 4 page DS134PP2-B 3 RECEIVER CHARACTERISTICS (T A = 25 °C; V+ = 3.0 V, Digital Input Levels: Logic 0 = 0 V, Logic 1 = V+; unless otherwise specified) Notes: 5. Typical PIN diode junction capacitance is 70 pF. 6. The temperature coefficient of the receiver threshold setting is low. Current detection thresholds are above the DC ambient condition. Settings of RS4-0 of less than 00010 are not practical because of noise. RX threshold settings are roughly linear following the formula: Threshold (nA) = (RX setting + 1) * 20 + 36. 7. Turn-around time is the time taken for the PIN diode receiver to recover from the IR energy from the local transmitter. The remote end of the link must wait for this time after receiving data before transmitting a reply. This time may be reduced to <1 ms by good IR shielding between the transmit LED to the PIN diode. TRANSMITTER DRIVER CHARACTERISTICS (T A = 25 °C; V+ = 3.0 V, Digital Input Levels: Logic 0 = 0 V, Logic 1 = V+, unless otherwise specified) Notes: 8. Typical LED junction capacitance is 20 pF. RECOMMENDED OPERATING CONDITIONS (All voltages with respect to 0 V) Parameter Symbol Min Typ Max Unit Input capacitance (Note 5) - 10 - pF Input noise current - - 11 pA/rtHz Maximum signal input current from detector - - 2 mA Maximum DC input current (typically sunlight) - - 100 µA Input current detection thresholds (Note 6) (Programmable with a 5 bit value) RS4-0 = 00010 RS4-0 = 00011 RS4-0 = 00101 RS4-0 = 00111 RS4-0 = 11111 - - - - - 98 114 156 197 724 - - - - - nA nA nA nA nA Bandpass filter response High Pass -3dB Low Pass -3dB - - 200 900 - - kHz kHz Receiver power-up time With high (100 µA) dc ambient With normal (2 µA) dc ambient - - 5 0.3 10 1 ms ms Turn-around time, with receiver on continuously (Note 7) - 5 10 ms Parameter Symbol Min Typ Max Unit Output Capacitance (Note 8) - 70 - pF Output rise time (10% to 90%) tr - 20 50 ns Output fall time (90% to 10%) tf - 20 50 ns Overshoot over final current - - 25 % On resistance - 0.8 1.5 Ω Off Leakage current - - 20 µA Parameter Symbol Min Typ Max Unit Operating Ambient Temperature TA 025 70 °C Data and State Retention Temperature (In Power Down) -40 - 85 °C CS8130 DS134F1-B 3 CS8130 DS134F1-B1 3 |
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