PDU54
PDU54 is ECL-INTERFACED PROGRAMMABLE DELAY LINE manufactured by Data Delay Devices.
FEATURES
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- Digitally programmable in 16 delay steps Monotonic delay-versus-address variation Precise and stable delays Input & outputs fully 100K-ECL interfaced & buffered Available in 24-pin DIP (600 mil) socket or SMD
PDU54-xx DIP PDU54-xx M Military DIP
N/C N/C GND N/C N/C N/C N/C N/C GND OUT N/C N/C 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 data 3 delay devices, inc.
PACKAGES
IN N/C VEE A3 N/C N/C A2 A1 VEE A0 N/C N/C
N/C N/C GND N/C N/C N/C N/C N/C GND OUT N/C N/C
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
IN N/C VEE A3 N/C N/C A2 A1 VEE A0 N/C N/C
PDU54-xx C4 SMD PDU54-xx MC4 Mil SMD
FUNCTIONAL DESCRIPTION
The PDU54-series device is a 4-bit digitally programmable delay line. The delay, TDA, from the input pin (IN) to the output pin (OUT) depends on the address code (A3-A0) according to the following formula: TDA = TD0 + TINC
- A
PIN DESCRIPTIONS
IN OUT A3-A0 VEE GND Signal Input Signal Output Address Bits -5 Volts Ground where A is the address code, TINC is the incremental delay of the device, and TD0 is the inherent delay of the device. The incremental delay is specified by the dash number of the device and can range from 100ps through 3000ps, inclusively. The address is not latched and must remain asserted during normal operation.
SERIES SPECIFICATIONS
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- Total programmed delay tolerance: 5% or 40ps, whichever is greater Inherent delay (TD0): 3.3ns typical Address to input setup (TAIS): 2.9ns Operating temperature: 0° to 85° C Temperature coefficient: 100PPM/°C (excludes TD0) Supply voltage VEE: -5VDC ± 0.7V Power Supply Current: -300ma typical (50Ω to -2V) Minimum pulse width: 3ns or 10% of total delay, whichever is greater Minimum period: 8ns or 2 x pulse width, whichever is greater
A i-1 PW IN IN TDA OUT Figure 1: Timing Diagram
1997 Data Delay Devices
DASH NUMBER SPECIFICATIONS
Part Number PDU54-100 PDU54-200 PDU54-250 PDU54-400 PDU54-500 PDU54-750 PDU54-1000 PDU54-1200...