bt865a Conexant Systems, Inc., bt865a Datasheet - Page 68

• Manufacturer Part Number: bt865a
• Description: Ycrcb To Ntsc/pal Digital Video Encoder
• Manufacturer: Conexant Systems, Inc.

Parametric Information
Table 4-4. AC Characteristics (VDD = 5 V, VAA = 5 V) (2 of 2)
4-4
Pipeline Delay
VAA Supply Current
VDD Supply Current
Total Supply Current
Power-Down Mode Currents
GENERAL NOTE:
FOOTNOTE:
(1)
(2)
(3)
(4)
(5)
(6)
75/7.5/75/7.5 Color bars normalized to burst.
100/0/100/0 Colorbars normalized to burst.
Guaranteed by characterization.
Without post filter. Guaranteed by design.
Control pins are defined as: P[7:0], Y[7:0],BLANK*, HSYNC*, VSYNC*, FIELD, TTXREQ, TTXDAT.
All digital inputs at GND or VDD.
Input Pixels to Composite Video
Input Pixels to RGB Output
5.0 V
3.3 V
5.0 V
3.3 V
VAA Supply Current (SLEEP = 1)
VDD Supply Current (SLEEP = 1)
VAA Supply Current (DAC off =1)
VDD Supply Current (DAC off =1)
“Recommended Operating Conditions,” NTSC CCIR 601 operation, and CLK frequency = 27 MHz. Analog output
load
guaranteed over the full temperature range, temperature coefficients are not specified or required. Typical values
are based on nominal temperature, i.e., room temperature, and nominal voltage, i.e., 5 V. Video input and output
timing is shown in Figure 4-1.
Parameter
=
75 pF. HSYNC*, VSYNC*, BLANK*, and FIELD output loads
(6)
(6)
250C Ref
EIA/TIA
Conexant
CCIR
567
Symbol
=
75 pF. As the above parameters are
Min
Typ
180
230
210
52
52
50
30
50
1
1
1
Bt864A/Bt865A Data Sheet
Max
CLK periods
CLK periods
Units
mA
mA
mA
mA
mA
mA
mA
mA
mA
100138C
02/17/03