DDS Генератор, Отсоветуйте Опции

[tygra]

Хочу приобрести DDS генератор до 10Мгц
http://www.ebay.com/itm/UDB1200-2MHz-DDS-s...=item2317267cb8

описание
Description :

This is a complete 2M DDS signal source, the use of DC5V power supply that can output sine, square wave (1% -99% duty cycle can be adjusted), triangle wave, and sawtooth waveforms and other functions, the maximum output of up to 9Vpp, frequency from 0.0Hz-2MHz (also optional 3MHz, 5MHz and 10MHz), a resolution of 0.1Hz, both with dual reverse TTL output, can produce digital adjustable duty cycle of IGBT for driving two TTL signals , with a 60MHz frequency counter, also has a resolution of 1mV of the ADC, measuring range 0V to 5V, so the DDS product combines many functions in one.

Specifications:

Main Sine wave output, square wave, triangle wave, sawtooth

Maximum output amplitude 9Vpp (no load)

Digital output amplitude control range: 0-255
Output impedance 50Ω ± 10%
DC offset ± 5V (no load)
Range 1% -99% duty cycle (square wave)
Display LCD1602

Output frequency range: sine wave 0.1Hz-2MHz (3MHz, 5MHz, 10MHZ)

Square wave 0.1Hz-1MHz (range)

Triangular wave 0.1Hz-1MHz (range)

Sawtooth 0.1Hz - 1MHz (range)

Resolution of 0.1Hz
Frequency stability ± 1 × 10-6
Frequency error of ± 5 × 10-6
Sine wave distortion <1% (reference frequency 1kHz)
Triangle wave linearity ≥ 98%, 0.01Hz-100kHz;

≥ 95%, 100kHz-1MHz;
Square wave rise and fall time <30ns
TTL output TTL level ≥ 3 Vp-p
Load with a load capacity 20TTL

Outside measurement:

Frequency range: 1Hz-60MHz

Signal amplitude: 0.5Vpp-20Vpp

Outside the counting range 0 -4294967296

ADC inputs: 0.000V-5.000V

And transferred to storage: 10 sets of parameters with the storage and recall functions

Какие плюсы минусы , может что лутче посоветуете ? из особенностей хочу отметить что имеет два противофазных ttl выхода , для двухтактного усила класса Е , наверно само то , если я конечно правильно все понял . . . Покритикуйте пожалуйста : )