RF Tuner Front End
AssemblyThe coax-facing radio section: a diplexer splits the 5–85 MHz upstream band from the 108–1218 MHz downstream band, a full-band capture tuner digitizes the entire downstream spectrum, and a programmable amplifier drives upstream bursts back onto the plant. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
RF Tuner Front End parts and their functions
6 top-level parts · 95 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | F-Connector | 1× | 75 Ω F-type coax port |
| 2 | Diplexer | 1× | Upstream/downstream band split |
| 3 | Full-Band Capture Tuner | 1× | Full-band capture tuner/ADC |
| 4 | Upstream Amplifier | 1× | Upstream burst power amplifier |
| 5 | Surge Arrestor | 1× | Gas-discharge surge protection |
| 6 | SMD Passive (R/C/L) | 90× | RF matching and filtering network |
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Bill of materials for RF Tuner Front End
6 top-level lines · 6 rows shown · 95 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | F-Connector | cable-modem-f-connector | 1× | 1 | · | part |
| 2 | Diplexer | cable-modem-diplexer | 1× | 1 | · | part |
| 3 | Full-Band Capture Tuner | cable-modem-fbc-tuner | 1× | 1 | · | part |
| 4 | Upstream Amplifier | cable-modem-upstream-amp | 1× | 1 | · | part |
| 5 | Surge Arrestor | cable-modem-surge-arrestor | 1× | 1 | · | part |
| 6 | SMD Passive (R/C/L) | smd-passives | 90× | 90 | · | part |
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Where the RF tuner front end is used
1 product across 1 domain contain it, directly or inside a sub-assemblyUsed in 1 assembly
Sourcing: possible vendors
Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
|
🇨🇳Foxconn
foxconn.com ↗
|
Shenzhen, CN | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| flex.com ↗ | Singapore | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| dixoninfo.com ↗ | Noida, IN | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| bydelectronic.com ↗ | Shenzhen, CN | Electronics contract mfg | 1,000 pcs | 6–10 wks |
| venture.com.sg ↗ | Singapore | Electronics contract mfg | 1,000 pcs | 6–10 wks |