ACTIVE GROUP DELAY
CORRECTOR NETWORK
AH1157
The AH1157 is an active group delay network which produces a group delay curve with a lift of +170 ns
at 4.43 MHz with respect to the delay at 200 kHz. The addition of capacitance (externally) across pins 11
and 12 of the module brings the +170 ns (delay) point down in frequency - typically 110 pF across the
pins produces +170 ns at 3.58 MHz wrt delay at 200 kHz. High input and low output impedance simplify
interfacing the module to the rest of the system.
Specification:
Input impedance
Output impedance
Power supply
Typical current
Group delay adjustment range wrt 200 kHz
Amplitude ripple
Aqueous Washable
Package
2.0 MΩ (typical)
< 1Ω (op-amp driver output)
+ 1.5V to + 5V (absolute max + 6V)
+ 15 mA per rail at + 5V supply
+170 ns at 4.43 MHz to +170 ns at 3.58 MHz
0.2 dB to 5.0 MHz
0.35 dB to 5.0 MHz
Yes
DR00062A
(no external capacitor)
(110 pF external capacitor)
© Faraday Technology. As part of continual product improvement the specifications, details and dimensions shown in this publication are subject to change
without notice
FARA086d
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Aug-05(B)
PACKAGE DETAIL
Faraday Technology Ltd.
Croft Road Industrial Estate,
Newcastle, Staffordshire
ST5 0QZ. England.
FARA086d
Tel:
Fax:
Email:
Web site:
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+ 44 (0)1782 661501
+ 44 (0)1782 630101
sales@faradaytech.co.uk
http://www.faradaytech.co.uk
Aug-05(B)
