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| SAA7108AE Datasheet, PDF (39/208 Pages) NXP Semiconductors – HD-CODEC | |||
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NXP Semiconductors
SAA7108AE; SAA7109AE
HD-CODEC
Signal (white) peak control limits the gain at signal overshoots. The inï¬uence of supply
voltage variation within the speciï¬ed range is automatically eliminated by clamping and
automatic gain control. The ï¬ow charts show more details of the AGC; see Figure 17 and
Figure 18.
TV line
analog line blanking
255
GAIN CLAMP
60
1
HCL
HSY
mgl065
Fig 14. Analog line with clamp (HCL) and gain range (HSY)
analog input level
+3 dB
0 dB
(1 V (p-p) 18/56 â¦)
â6 dB
maximum
range 9 dB
minimum
Fig 15. Automatic gain range
controlled
ADC input level
0 dB
mhb325
SAA7108AE_SAA7109AE_3
Product data sheet
Rev. 03 â 6 February 2007
© NXP B.V. 2007. All rights reserved.
39 of 208
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