SAA7121HV2 NXP Semiconductors, SAA7121HV2 Datasheet - Page 19

• Manufacturer Part Number: SAA7121HV2
• Manufacturer: NXP Semiconductors

Specifications of SAA7121HV2

• Adc/dac Resolution: 10b
• Screening Level: Commercial
• Package Type: PQFP
• Pin Count: 44
• Lead Free Status / RoHS Status: Compliant

Philips Semiconductors
Table 29 Logic levels and function of FLC
Table 30 Subaddress 6FH
Table 31 Logic levels and function of CCEN
Table 32 Subaddresses 70H to 72H
Table 33 Subaddresses 73H and 74H
2002 Oct 11
CCEN
TTXEN
SCCLN
RCV2S
RCV2E
TTXHS
TTXHD
DATA BYTE
DATA BYTE
DATA BYTE
Digital video encoder
CCEN1
FLC1
0
0
1
1
0
0
1
1
DATA BYTE
DATA BYTE
start of output signal on pin RCV2
end of output signal on pin RCV2
start of signal on pin TTXRQ; see Fig.10
indicates the delay in clock cycles between rising edge of
TTXRQ output and valid data at pin TTX
values above 1715 (FISE = 1) or 1727 (FISE = 0) are not allowed; first active pixel at analog outputs
(corresponding input pixel coinciding with RCV2) at RCV2S = 11AH (0FDH)
values above 1715 (FISE = 1) or 1727 (FISE = 0) are not allowed; last active pixel at analog outputs
(corresponding input pixel coinciding with RCV2) at RCV2E = 694H (687H)
CCEN0
LEVEL
LOGIC
FLC0
0
1
0
1
0
1
0
1
0
1
interlaced 312.5 lines/field at 50 Hz, 262.5 lines/field at 60 Hz; default after reset
non-interlaced 312 lines/field at 50 Hz, 262 lines/field at 60 Hz
non-interlaced 313 lines/field at 50 Hz, 263 lines/field at 60 Hz
non-interlaced 313 lines/field at 50 Hz, 263 lines/field at 60 Hz
enables individual line 21 encoding; see Table 31
disables teletext insertion; default after reset
enables teletext insertion
selects the actual line, where closed caption or extended data are encoded;
line = (SCCLN + 4) for M-systems; line = (SCCLN + 1) for other systems
line 21 encoding off; default after reset
enables encoding in field 1 (odd)
enables encoding in field 2 (even)
enables encoding in both fields
DESCRIPTION
19
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
PAL: TTXHS = 42H
NTSC: TTXHS = 54H
minimum value: TTXHD = 2
SAA7120H; SAA7121H
REMARKS
Product specification