HP 11835A Data Buffer

The HP 11835A Data Buffer is a configurable data output device. Its primary function is to buffer data from a computer and output the data as a serial stream. It can output the serial data at rates from dc to 4 MHz with a user-supplied clock. Optionally, an internal reference board will provide the bit clock used in the GSM system (Option 001) or the bit and symbol clock used in the North American and Japanese digital cellular systems (Option 002).

[ Features ]

Configurable data output device
Serial data output rates from dc to 4 MHz
Optional bit and symbol clock for NADC and PDC systems

[ Specifications ]

HP 11835A Specifications
Inputs(TTL Levels)
	Bit clock input:
		BNC, rear panel
	GPIO input:
		50-pin, front panel
	Trigger input:
		BNC, rear panel
Outputs(TTL Levels)
	Data output:
		BNC, front panel
	Clock output:
		BNC, front panel
	Program outputs:
		25-pin, front panel
	Parallel bus outputs:
		25-pin, rear panel
	Hop control bus:
		50-pin, rear panel
	Programmable outputs:
		3 BNCs, rear panel


Option 001 Specifications (for use with the GSM System)
Reference modes:
	Reference Lock, Bit Clock Lock, Frame Clock Lock, or Free Run
Inputs: (rear panel BNCs)
	Reference:
		1, 2, 5, 10, 13 MHz, > 0 dBm (50 ohms nominal)
	Frame clock:
		216.67 Hz, TTL levels
	Bit clock:
		270.833 kHz, TTL levels
Outputs: (rear panel BNCs)
	10 MHz, 13 MHz, 270.833 kHz (bit), 216.67 Hz (frame)


Option 002 Specifications(for use with NADC or PDC systems)
Reference modes:
	Reference Lock, Bit Clock Lock, Frame Clock Lock, or Free Run
Inputs:(rear panel BNCs)
	Reference:
		1, 2, 5, 10 MHz, > 0 dBm (50 ohms nomimal)
	Frame clock:
		21 kHz (PDC), 24.3 kHz (NADC) TTL levels
	Bit colck:
		42 kHz (PDC), 48.6 kHz (NADC) TTL levels
Outputs:(rear panel BNCs)
	Reference:
		10 MHz (50 ohms nominal)
	Symbol clock:
		21 kHz (PDC), 24.3 kHz (NADC) TTL levels
	Bit clock:
		42 kHz (PDC), 48.6 kHz (NADC) TTL levels
	Frame clock:
		25 Hz or 50 Hz, TTL levels
Note: for bit and symbol clocks, rates can be varied +/- 10 ppm.

[ Ordering ]

HP 11835A	Data Buffer
(only one Option can be ordered)
   Opt 001	GSM Reference
   Opt 002	NADC and PDC Reference
   Opt 907	Front Handle Kit (5062-3988)
   Opt 908	Rack Mount Flange Kit (5062-3974)
   Opt 909	Handles w/Rack Mount Flange Kit (5062-3975)

Technical Specifications

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