© Faraday Technology. As part of continual product improvement the specifications, details and dimensions shown in this publication are subject to change without notice

Fara225p

Page 1 of 2

Aug-05(C)

The HF range of low cost HDTV filters are available in a choice of miniature packages and give

near SMPTE 274M performance suitable for single pass or monitor applications.

•

Aqueous washable

•

Near SMPTE 274M performance

•

Ideal for monitor outputs

•

Pre and Post, Luminance and Chrominance filters

•

SIL or SMD package

•

Integer N

Filter Type

HF7425FP*

HF3712FP*

HF7425SP*

HF3712SP*

Filter Shape

Lowpass

Lowpass

Lowpass

Lowpass

Passband Shape

Flat

Flat

Sinx/x

Sinx/x

Sampling Frequency

74.25 MHz

37.125 MHz

74.25 MHz

37.125 MHz

Insertion Loss at 100 kHz

< 1.0 dB

< 1.0 dB

< 5.0 dB

< 5.0 dB

End Of Passband

29.7 MHz

14.85 MHz

29.7 MHz

14.85 MHz

Amplitude Ripple

< 0.1 dB to 29.0 MHz

< 0.15 dB to 29.7 MHz

< 0.1 dB to 14.5 MHz

< 0.15 dB to 14.85 MHz

< 0.2 dB

< 0.25 dB

< 0.2 dB

< 0.25 dB

> 12 dB Attenuation @

37.400 MHz

18.563 MHz

37.400 MHz

1

18.563 MHz

2

> 40 dB Attenuation @

44.550 MHz

22.275 MHz

44.550 MHz

22.275 MHz

Start Of Stopband

54.200 MHz

27.100 MHz

54.200 MHz

27.100 MHz

Stopband Attenuation

> 50 dB

> 50 dB

> 50 dB

> 50 dB

Stopband Measured to

100 MHz

100 MHz

100 MHz

100 MHz

Group Delay Ripple

<±4.5 ns to 20.0 MHz

<±6.4 ns to 29.7 MHz

<±8.0 ns to 10.0 MHz

<±12.0 ns to 14.8 MHz

<±4.5 ns to 20.0 MHz

<±6.4 ns to 29.7 MHz

<±8.0 ns to 10.0 MHz

<±12.0 ns to 14.8 MHz

Delay Time at 200 kHz

Integer N

and Chrominance Filters

Integer N

between Luminance and Chrominance Filters

Impedance

75 ohms

75 ohms

75 ohms

75 ohms

Temperature Range

0°C to 70°C

0°C to 70°C

0°C to 70°C

0°C to 70°C

SMD Reflow Limitations

refer to Data Sheet Fara309

Aqueous Washable

Yes

Yes

Yes

Yes

Part Numbering

HF

Sampling

74.25 MHz – 7425

Package

DR00005A - A

Frequency 37.125 MHz – 3712

DR00291A - B

Passband

Sinx - S

Realisation

Passive - P

Shape

Flat – F

Example part number HF7425SPA is a passive, luminance, sinx/x corrected for a S.F. of 74.25

MHz packaged in a 11 pin SIL as DR00005A

HF SERIES

LOW COST HDTV FILTERS