You want to test your DAC or other digital audio equipment?
You don't want to use computer, due to a noise, ground loops, space?
You need the mains or the battery operated device?
JKGEN - is for you!
Digital function generator with SPDIF, TOSLINK, DSD and I2S outputs.
Now - with DSD!
Low Frequency Digital Audio Signal Generator JKG 384-12
The main advantage of this device is I2S, SPDIF and TOSLINK, 15 signal shapes generation, DSD Modes.
Also with the regular analog signals.
Target application: DAC and other digital and analogue audio system research, development, debug and repair.
Discontinued, a new version is JKGEN-2!
Digital coaxial SPDIF output (with galvanic isolation)
Digital CMOS-level SPDIF output
Digital optical TOSLINK output
Digital I2S output:
Right Justify 24bit
Right Justify 16bit
2 Channel Analog outputs
16, 24, 32 bit at I2S output
44.1, 48, 88.2, 96, 176.4, 192 kHz Fs at all digital outputs
Additionally - 352.8 and 384kHz at I2S output.
1mHz - 100kHz generated frequency
15 signal shapes
Internal low jitter 512*Fs clock
External 512*Fs or 1024*Fs clock
Output digital level control: 0..-20dB 1dB step, -20..-90dB 10dB step
Left and Righ in phase,
Left and Righ out of phase (180deg.)
Left and Righ orthogonal (90deg.),
Left, Right, Mute.
8 user's setups, stored in flash memory.
TFT Display and "one knob" encoder control
Easy firmware upgrade using USB Disc-On-Key.
6-9VDC input voltage:
from mains (wall adapter)
6V Lead-Acid Battery
7.2V Li-Ion Battery
+5VDC, 100mA max at I2S output connector, for auxiliary devices.
Less then 3W power consumption.
2 tone IMD test signals:
Sine Squared Signal
SIN, Triangle, Saw and Square wave can be variable (0.1-99999.9 Hz) frequencies or fixed in two ranges:
0.1, 1, 5, 10, 20, 50, 100, 200, 500, 1000 Hz,
5, 10, 15, 20, 30, 40, 50, 60, 100 kHz.
Low Frequency Range:
1, 10, 50, 100, 200, 500, 1000 mHz,
2, 5, 10, 50, 100, 150, 200, 300, 400, 500, 600, 1000 Hz.
IMD Test Signals:
60/7000 Hz, 4:1 ampl.
250/8020 Hz, 4:1 ampl
6000/7000 Hz, 1:1 ampl
19000/20000 Hz, 1:1 ampl
DSD Bus (L-Data, R-Data, Clock) signal generation in 64x mode.
DSD Over PCM (DoP) protocol generation at I2S bus (LJ or I2S format).
DSD Signal shapes:
SIN Wave (441, 1002, 11025, 22050 and 44100 Hz)
* - clock manufacturer data.
7 things, making this device better then PC with a sound card:
Not everyone PC's sound card have SPDIF/TOSLINK outputs.
Not everyone PC's sound card have I2S output
Not everyone PC's sound card have external MCLK input
JKG 384-12 is much smaller then desktop PC
JKG 384-12 have less surrounding cables, then desktop or laptop with external sound card
JKG 384-12 can be powered from the battery, allowing "on field operation"
JKG 384-12 can be powered from the battery, avoiding the ground loops