ltc4307-1 Linear Technology Corporation, ltc4307-1 Datasheet
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ltc4307-1
Related parts for ltc4307-1
ltc4307-1 Summary of contents
Page 1
... HDMI hot plug detect (HPD) signal. When driven high, the ENABLE digital input allows the LTC4307-1 to connect after a stop bit or bus idle. Driving ENABLE low breaks the connection between the input and output busses. ...
Page 2
... LTC4307 ABSOLUTE AXI U RATI GND ................................................. – 0. SDAIN, SCLIN, SDAOUT, SCLOUT, READY, ENABLE .......................................... –0. Maximum Sink Current (SDAIN, SCLIN, SDAOUT, SCLOUT, READY) .............................................. 50mA Operating Temperature Range LTC4307C ................................................ 0°C to 70°C LTC4307I .............................................– 40°C to 85°C PIN CONFIGURATION TOP VIEW ...
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... Note 3: Determined by design, not tested in production. Note 4: Measure points are 0.3 • V Note 5: I test performed with connection circuitry active. CC Note 6: All currents into pins are positive; all voltages are referenced to GND unless otherwise specifi ed. LTC4307-1 MIN TYP MAX UNITS 0.8 1 ● ...
Page 4
... LTC4307-1 TIMING DIAGRAMS ENABLE CONNECT READY Rising and Falling Propagation Delay and Rise and Fall Times for SDAIN, SDAOUT and SCLIN, SCLOUT SDAIN/SCLIN SDAOUT/SCLOUT 4 ENABLE, CONNECT, READY Timing t PLH_READY t t PLH_EN PHL_EN PLH PHL RISE Figure 1. Timing Diagrams t PHL_READY 4307 F01a ...
Page 5
... V = 2.3V CC 700 –50 – TEMPERATURE (°C) OUT 85 = 10k 3. 600 800 1000 (pF) 4307 G04 LTC4307 25° 3.3V, unless otherwise indicated Input-Output High to Low Propagation Delay vs Temperature 100 50pF IN OUT ...
Page 6
... LTC4307 CTIO S ENABLE (Pin 1): Connection Enable Input. This is a 1.4V digital threshold input pin. For normal operation pull or tie ENABLE high. Driving ENABLE below 0.8V isolates SDAIN from SDAOUT, SCLIN from SCLOUT and asserts READY low. A rising edge on ENABLE after a fault has occurred forces a connection between SDAIN, SDAOUT and SCLIN, SCLOUT ...
Page 7
... SLEW RATE DETECTOR + – 0.55V CC + – 0.55V CC ENABLE + 1 – 1.4V Low Offset Level-Shifting 2-Wire Bus Buffer CONNECT CONNECT CONNECT CONNECT LOGIC 95μs DELAY UVLO LTC4307 SDAOUT 7 SLEW RATE DETECTOR SCLOUT 2 SLEW RATE DETECTOR + – 0.55V CC + – 0.55V CC READY 5 CONNECT GND CONNECT ...
Page 8
... SDA or SCL pins until V rises above 2V (typ). This is to ensure that CC the LTC4307-1 does not try to function until it has enough voltage to do so. Once the LTC4307-1 comes out of UVLO, it monitors both 2-wire busses for either a stop bit or bus idle condition to indicate the completion of data transactions ...
Page 9
... In HDMI, the sink device pulls the hot plug detect HPD signal high to tell the source that it is ready to accept commands through the DDC. This signal can be controlled through the READY pin of the LTC4307-1 to prevent the possibility of erroneous attempts by the source to contact the sink before the sink is ready to return its extended display identifi ...
Page 10
... DDC/CEC GROUND HDMI SOURCE (DVD PLAYER) Figure 4. The LTC4307 Level Shifting and Capacitance Buffering HDMI Application with Backup 3.3V 10 Although the applications shown in this section are for HDMI receive channels, the LTC4307-1 can also be used in HDMI transmit channels with equal success as shown in the Typical Application on the last page of this data sheet ...
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... MS8 Package 8-Lead Plastic MSOP (Reference LTC DWG # 05-08-1660 Rev F) DETAIL “A” 0.254 (.010) 0° – 6° TYP GAUGE PLANE 0.53 ± 0.152 (.021 ± .006) DETAIL “A” 0.18 (.007) LTC4307 0.115 TYP 5 3.00 ±0.10 1.65 ± 0.10 (4 SIDES) (2 SIDES) 4 0.25 ± 0.05 0.75 ±0.05 2.38 ±0.10 (2 SIDES) 0.00 – ...
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... LTC4307-1 TYPICAL APPLICATION HDMI Application with LTC4307-1’s Providing Capacitance Buffering DVD PLAYER (SOURCE 10k 10k LTC4307-1 V READY CC SDAIN SDAOUT HDMI TX SCLIN SCLOUT IC ENABLE GND RELATED PARTS PART NUMBER DESCRIPTION LTC1380/LTC1393 Single-Ended 8-Channel/Differential 4-Channel Analog MUX with SMBus Interface LTC1427-50 ...