|
TIME CODE GENERATOR/TRANSLATOR FUNCTIONS |
|
Amplitude |
0.5 to 20V p-p, single-ended |
|
Impedance |
12KW (minimum) |
|
Input Codes |
IRIG A, B, or G |
|
Input Frequency |
125Hz to 400kHz |
|
Modulation Index
|
2:1 through 5:1 |
|
Polarity |
Program selectable: normal/inverted |
|
Leap Year |
Program selectable: enable resets days to 1 after 366 |
|
Internal Time Base
|
32MHz crystal oscillator |
|
OPERATION |
|
Generate Mode |
Program selectable: generates
multiples of 4, 2, 1, 1/2,
and 1/4 realtime. |
|
Translate Mode
|
Time read from external source |
|
Translate Carrier Mode
|
Internal timing clock derived from
input carrier. Allows translation to continue as input carrier rate varies during playback of an analog recording.
|
|
Translate Failsafe Mode
|
Internal timing clock is phase-locked
to input carrier. Allows translator to generate time in the event of time input dropout. Time is resolved to
microseconds for all input code formats. Program selectable: translates at multiples of 4,
2, 1, 1/2,
and 1/4 realtime.
|
|
Frame Bypass
|
Automatic frame bypass compares
previous time frame to current time frame. Time accumulator is updated on agreement.
|
|
OUTPUT |
|
Time
|
BCD
time-of-year (days through microseconds) delivered as four 16-bit words at
one millisecond and one second intervals
|
|
Generator Output
|
Program selectable: IRIG time codes A,
B, and G |
|
Slow Code Output
|
Datum bi-level or IRIG level shift.
Four programmable rates |
|
PAM/PCM FORMAT SIMULATOR FUNCTIONS
OPERATION
|
|
Format Storage
|
Stores two complete, selectable PCM
formats. Performs asynchronous frame insertion and format switching
|
|
Subframe Capability
|
Generates up to three subframes within
mainframe. Can generate a subframe within a subframe |
|
Frame Length
|
Up to 65,536 words for mainframe
and 16,384 words for subframe |
|
Data Sources
|
1024 static registers
Two user-defined dynamic data memories. Two 16-bit modulo
up/down counters.
Two 16-bit external inputs. One 16-bit pseudo-random
number generator.
One 16-bit program counter
|
|
Word Length
|
Programmable for each data source:
static data words 1 to 32 bits; all others 1 to 16 bits |
|
Word Orientation |
Program selectable: MSB/LSB for each
data word |
|
Parity Generation
|
Program selectable: leading, trailing,
or no parity for each data word |
|
Dynamic Data Memories
|
Two, each with 16KB RAM. Presettable to
ramp, sine, triangle and squarewave functions or user-defined input. Selectable data type: 1’s complement,
2’s complement, signed magnitude, offset binary. Programmable time base.
|
|
OUTPUTS |
|
Bit Rate |
Program selectable: 1Hz to 64MHz, tunable to 0.1% of programmed rate |
|
Clock |
0º
clock |
|
Data |
NRZ-L |
|
Output Codes
|
Program selectable: NRZ-L/M/S, BiØ-L/M/S,
DBiØ-M/S, DM-M/S, MDM-M/S, RNRZ 11/15/17/23
|
|
PAM Output |
2.5 Volts, balanced output, 10mA drive current |
|
PCM Output |
TTL compatible NRZ-L data and 0º clock |
|
PHYSICAL |
|
Hosts Supported |
Plugs onto Model 1502V or
1602P |
|
Cooling Requirements |
30 Linear FPM |
|
Power Requirements |
+5VDC
at 1.1A, +12VDC at 100mA, -12VDC at 100mA. Power supplied by host board |
|
Dimensions |
5.9” (14.99cm) H x 3.9” (9.91cm) W x .35” (.89cm) D. Host and module fits in standard
slot |
|
Temperature |
Operating 0 to +40°C,
non-operating –40 to +86°C |
|
Relative Humidity |
Up to 90% non-condensing |
|
Shock |
Operating 6G, Non-operating 25G |
|
Vibration |
Operating 0.5G, 5 to 2000Hz, Non-Operating 1.2G, 5 to 500Hz |
|
specifications
subject to change without notice |
