tda8754el/27 NXP Semiconductors, tda8754el/27 Datasheet - Page 13

• Manufacturer Part Number: tda8754el/27
• Description: Triple High Speed Adc For Lcd Drive
• Manufacturer: NXP Semiconductors

Philips Semiconductors
8. Functional description
9397 750 14984
Product data sheet
8.1.1.1 Standby mode
8.1.1 Power management
8.1 Functional description
Table 4:
This triple high-speed 8-bit ADC is designed to convert RGB/YUV signals coming from an
analog source into digital data used by a LCD driver (pixel clock up to 270 MHz with
analog source) or projections systems.
It is possible to put the TDA8754 in Standby mode by setting bit STBY = 1 or to put the
whole device in Power-down mode by setting pin PWD to HIGH level.
In Standby mode, the status of the blocks is as follows:
Symbol
RB1
RA6
RA3
RA0
BB7
BB5
BB3
BB0
BA5
BA1
GB7
GB3
GA7
GA3
GOR
RB5
RB2
RA7
RA4
RA1
•
•
•
•
•
Activity detection, I
Pixel counter, ADCs, demultiplexers, AGC and clamp cells are inactive
Output buffers to the RGB block (RGB 0 to 7, CKDATA, DEO, HSYNCO and
VSYNCO) are in high-impedance state
Output HPDO is still active
Output buffers (ROR, BOR, GOR, CKREFO, CSYNCO, CLPO and FIELDO) are in a
LOW-level state.
Pin description for LBGA208 package
Ball
R13
R14
R15
R16
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10
T11
T12
T13
T14
T15
T16
2
Rev. 06 — 16 June 2005
C-bus slave, sync separator and SOG are still active
Description
red channel ADC output B bit 1
red channel ADC output A bit 6
red channel ADC output A bit 3
red channel ADC output A bit 0
blue channel ADC output B bit 7
blue channel ADC output B bit 5
blue channel ADC output B bit 3
blue channel ADC output B bit 0
blue channel ADC output A bit 5
blue channel ADC output A bit 1
green channel ADC output B bit 7
green channel ADC output B bit 3
green channel ADC output A bit 7
green channel ADC output A bit 3
green channel ADC output bit out of range
red channel ADC output B bit 5
red channel ADC output B bit 2
red channel ADC output A bit 7
red channel ADC output A bit 4
red channel ADC output A bit 1
…continued
Triple 8-bit video ADC up to 270 Msps
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
TDA8754
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