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3). About don’t use terminal.

 

Unused TMDS input channel can be opened. 

 

 

 

 

 

 

 

 

 

 

Figure 6-3. TMDS Input Fail-Safe Recommendation 

 

   

Unused DDC Buffers of R side pull up to Vdd . 

 

 

 

 

 

 

 

 

 

 

Figure 6-4. DDC Buffers in BU16028KV

 

4

. About serial connect notice. 

      When HDMI sw output connect to other HDMI sw input like following application. 

      There is possibility that. 1080p(12bit) image isn’t displayed. It

s depend on receiver IC characteristic. 

      When system is required 1080p (12bit), Rohm doesn’t recommend serial connect application. 

      . 

 

TMDS
Receiver

TMDS
Driver

Vcc

R

INT

R

INT

Y

Z

A

B

Y

Z

R

T

R

T

TMDS
Receiver

TMDS
Driver

Vcc

R

INT

R

INT

Y

Z

A

B

AVCC

 

Fig6-5 serial connect notice 

 

TMDS
Receiver

TMDS
Driver

Vcc

R

INT

R

INT

B U 1 6 0 2 8 KV

Y

Z

R

T

R

T

AVcc

A

B

T

R

VCC

RSCL
RSDA

TSCL
TSDA

4.7k

Summary of Contents for BU16028KV

Page 1: ...S inputs are high impedance This device is integrated equalization function and DDC buffer function so it can adapt long cable Features Supports 2 25 Gbps signaling rate for 480i p 720i p and 1080i p...

Page 2: ...2 17 OUTSIDE DIMENSION CHART Fig 1 1 Outside dimension chart Lot No BU16028KV 1PIN MARK...

Page 3: ...S1 S2 HPD_SINK SCL_SINK SDA_SINK HPD1 HPD2 HPD3 SCL1 SDA1 SCL2 SDA2 SCL3 SDA3 TMDS R X TMDS R X TMDS R X TMDS R X R INT R INT V CC R INT R INT V CC R INT R INT V CC R INT R INT V CC VSADJ HPD_SINK TM...

Page 4: ...SDA3 SCL3 46 37 38 39 40 41 42 43 44 45 48 47 34 33 36 35 28 27 26 25 24 32 31 30 29 3 12 11 10 9 8 7 6 5 4 1 2 14 13 16 15 A31 GND B34 A34 VSADJ SCL_SINK GND SDA_SINK HPD_SINK S1 Vcc Vcc A11 B11 SCL1...

Page 5: ...urce port 3 hot plug detector output status pin HPD_SINK 31 I Sink port hot plug detector input status pin Reserve1 34 I O Set to HIGH LOW OPEN Reserve2 49 I O Non Connect Pin SCL1 37 I O Source port...

Page 6: ...Anm Bnm 50 VDD TMDS Input Stage Ym Zm 10mA TMDS Output Stage R Side I2C Input Output Stage SCL SDA VDD VDD VDD VDD VDD SCL_SINK SDA_SINK HPD_SINK HPDn VDD HPD Output Stage T Side I2C Input Output Sta...

Page 7: ...SCL3 SDA3 L L H H H L None Z All terminations are disconnected None Z Are pulled HIGH by external pull up termination H H H L H H Disallowed indeterminate State All terminations are disconnected SCL1...

Page 8: ...68 k AVCC TMDS Output termination voltage see Figure 5 1 3 3 3 3 6 V RT Termination resistance see Figure 5 1 45 50 55 Signaling rate 0 2 25 Gbps CONTROL PINS S1 S2 VIH LVTTL High level input voltage...

Page 9: ...W TMDS DIFFERENTIAL PINS A B Y Z VOH Single ended high level output voltage See Figure 5 2 AVcc 3 3V RT 50 AVcc 200 Avcc 50 mV VOL Single ended low level output voltage AVcc 600 Avcc 400 mV VSWING Sin...

Page 10: ...2 4 5 5 V VIL Low level input voltage 0 3 0 8 V IlKR Input leak current VI 5 5V 10 10 uA IlKR Input leak current VI Vcc 10 10 uA IOHR High level output current VO 3 6V 10 10 uA IILR Low level input cu...

Page 11: ...low level output Tx to Rx 200 ns tpdLHRT DDC Propagation delay time low to high level output Rx to Tx RL 1 67k CL 400pF 500 ns tpdHLRT DDC Propagation delay time high to low level output Rx to Tx 350...

Page 12: ...p VIC VOD pp tf 80 20 VOD U 0 0V Differential 100 tPLH VOC tr VOD O VOC SS VB Vswing tPLH Vcc V Vcc 0 2 V DC Coupled AC Coupled Figure 5 2 Timing Test Circuit and Definitions Zo RT Zo RT TMDS Driver T...

Page 13: ...ential Skew Figure 5 4 TMDS Outputs Control Timing Definitions S1 Clocking S2 A B A B A B 75mV 75mV HI Z 75mV 75mV tsx ten Y Z Output 2 VDD 0V VDD tsx tdis Port 1 Port 2 Port 3 Vcc 0 4 V Vcc V Vcc 0 4...

Page 14: ...0V 2 Vcc tpdHLRT DDC tpdLHRT DDC HPD_SINK HPD1 HPD2 HPD3 S1 S2 SDA_SINK SDA1 SDA2 SDA3 VDD 1 5V tSX DDC 1 5V VDD 0V tpdHLTR DDC tpdLHTR DDC tfTX DDC trTX DDC tfRX DDC trRX DDC 80 20 80 20 RX to TX TX...

Page 15: ...output Buffer AVCC power down controler VCC BU16028KV Low Vsat TR Tx side need more than 10mA load VCC 10k GND 3pin HPD2 Figure 6 1 Ist mode application 2 HPD_SINK Pull down resistance HPD_SINK is a 5...

Page 16: ...MI sw input like following application There is possibility that 1080p 12bit image isn t displayed It s depend on receiver IC characteristic When system is required 1080p 12bit Rohm doesn t recommend...

Page 17: ...12 0 0 2 10 0 0 1 12 0 0 2 0 145 0 5 0 15 0 1 0 05 1 4 0 05 1 25 1 25 1 0 0 2 1 6Max 0 05 0 04 0 2 0 5 0 1 4 6 4 0 05 0 03 0 08 S 0 08 M When you order please order in times the amount of package qua...

Page 18: ...this document are no antiradiation design Appendix1 Rev2 0 Thank you for your accessing to ROHM product informations More detail product informations and catalogs are available please contact your nea...

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