tc90a58f TOSHIBA Semiconductor CORPORATION, tc90a58f Datasheet - Page 10

• Manufacturer Part Number: tc90a58f
• Description: 3-channel Ad Converter
• Manufacturer: TOSHIBA Semiconductor CORPORATION

7. Multiplexing H, V and F
8. I
Slave Address
9. Countermeasure against HDIN and VDIN Pulse Noise (to avoid misinterpretation)
10. Countermeasure against VDIN Noise (to avoid misinterpretation)
11. Internal Generation of Clamp Pulse
and 80).
being misinterpreted as genuine HD and VD input.
regarded as noise) can be set using the bits HDDIRECT and VDDIRECT in the I
Sub-Address 03H.
as VD.
11H.
Sub-Address 11H).
CLPSEL bit in the I
2
C Bus
In ITU-R656 Mode only, SAV and EAV (H, V and F information) are multiplexed in the data.
Where data is multiplexed depends on the HD output timing.
The TC90A58F bus control format conforms to the Philips I
The two least significant bits (A0 and A1) of the slave address can be set using TES1 and TES0 (pins 79
Set two least significant bits (A0 and A1).
A countermeasure is taken to prevent spike noise in the pulse input to the HDIN and VDIN pins from
The noise-detection width (either all pulses of less than 8 clocks or all pulses of less than 1 clock are
A countermeasure is taken to prevent noise in 1 V (during vertical scanning) from being misinterpreted
Noise rejection can be switched ON/OFF using the VGATEON bit in the I
The noise detection range can be set using the VGTEGA and VGTEGB bits in Sub-Address 0FH~
The clamp pulse can be internally generated.
Switching between external input and internal generation of the clamp pulse can be set using the
The clamp pulse generation timing and width can be set using the corresponding I
A6
1
Timing: CLPSTA10~CLPSTA4 in Sub-Address 0CH and CLPSTA3~CLPSTA0 in Sub-Address 0DH
Pulse width: CLPWID10~CLPWID7 in Sub-Address 0DH and CLPWID6~CLPWID0 in Sub-Address
A5
0
0EH
2
C bus register Sub-Address 0EH.
TES1
0
0
1
1
A4
0
TES0
0
1
0
1
A3
1
10
A2
1
Slave Address
2
10011000
10011010
10011100
10011110
C bus control format.
A1
A1
2
C bus register Sub-Address
A0
A0
2
C bus registers
2
C bus registers.
TC90A58F
R/W
2002-02-06
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