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BD-300
Dual-Band (1.2G/2.4G) Programmable LO Down Converter
1.2GHz / 2.4GHz down converter with programmable LO
LO 1050–2300 MHz
BD-300 is a digitally controlled dual-band down converter with a programmable local oscillator from 1050 to 2300 MHz. It accepts 2.4GHz (2350~2500 MHz) and 1.2GHz (1200~1350 MHz) inputs, and can be powered either from the RF cable (+12V) or from the USB connector (+5V).
2.4GHz in: 2350–2500 MHz · 1.2GHz in: 1200–1350 MHz · LO: 1050–2300 MHz (typ. 1800)
Datasheet — BD-300
08 · Up / Down Converter
Features
- 01 Digital control down converter with programmable LO frequency 1050~2300MHz.
- 02 Power source — From RF cable (+12V) · From USB connector (+5V)
- 03 Input frequency for 2.4GHz port: 2350~2500MHz
- 04 Input frequency for 1.2GHz port: 1200~1350MHz
- 05 2.4GHz LNA gain: 10dB
- 06 1.2GHz LNA Gain: 10dB
- 07 2.4GHz Noise Figure: 2dB
- 08 1.2 GHz Noise Figure: 1.5dB
- 09 Pmax: -10 dBm
- 10 Recommended 2.4GHz < -15 dBm, 1.2GHz < -25 dBm
Specifications
Electrical Characteristics
- Current consumption (Down Converter)
- 240–310 mA (5V supply)
- Frequency Range — 2.4GHz LNA
- 2350–2500 MHz
- Frequency Range — 1.2GHz LNA
- 1200–1350 MHz
- LO Frequency Range
- 1050–2300 MHz (typ. 1800)
- Input P1dB — 2.4GHz
- -6 dB (typ.)
- Input P1dB — 1.2GHz
- -8.5 dB (typ.)
- Noise Figure — 2.4GHz
- 1.5–2.5 dB
- Noise Figure — 1.2GHz
- 1–1.5 dB
- Internal TCXO
- 20 MHz (typ.)
- Phase Noise LO=1840MHz
- -111 dBc/Hz (typ., 100kHz offset)
- Phase Noise LO=1330MHz
- -114 dBc/Hz (typ., 100kHz offset)
- Ambient Operating Temperature
- -20 to +80 ºC
- Tamb = 25 ºC; typical values at VCC = 3.3 V; ZS = ZL = 50
- Source correction: the 2012 parameter table listed the 2.4GHz LNA range as 2400~2500MHz, disagreeing with the features list (2350~2500MHz). HiDes confirmed 2350MHz is correct (2026-07-25); the table figure was an error in the original datasheet and both now read 2350~2500MHz.
Availability varies by model — current-production gear is in the eBay store, and every page links to its original write-up on the old site. Original product page →
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https://hides.com.tw/en/ham/catalog/bd-300/ · +886-2-2917-2417 · info@hides.com.tw