> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Si4703 FM Tuner Evaluation Board

**Type:** Product page · **SKU:** WPB444 · **Brand:** [Pimoroni](https://core-electronics.com.au/brands/pimoroni-australia) · **GTIN:** 5410329729615
**Page:** https://core-electronics.com.au/si4703-fm-tuner-evaluation-board.html ([markdown](https://core-electronics.com.au/si4703-fm-tuner-evaluation-board.html.md))

This board is a radio and RDS receiver combined with an efficient 150 mW audio amplifier. It is ideal if you want to create your own clock radio or if you...

## Pricing

- **Price:** $34.15 (inc GST) — $31.05 AUD, exc GST
- **Quantity discounts:** 10+ $29.80 (exc GST) · 25+ $28.87 (exc GST)

## Availability & dispatch

- Out of stock — the product page offers email notification when it returns.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=WPB444:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/WPB444:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

This board is a radio and RDS receiver combined with an efficient 150 mW audio amplifier. It is ideal if you want to create your own clock radio or if you want to add FM functionality to your projects.

**Features**

- worldwide FM band support
- digital low-IF receiver
- automatic frequency control (AFC)
- automatic gain control (AGC)
- volume control
- RDS/RBDS support
- Arduino® library available
- 150 mW amplifier stereo amplifier
- level shifters 5 V -3.3V on board

**Specifications**

- interface: I2C
- power / logic level: 3.3 - 5 V
- sensitivity: 1.7 µ emf
- max. output power: 150 mW (8 Ohm)
- default gain: 18 dB (8 x) (adjustable)
- dimensions: 29 x 22 mm

**Manual**

- [User manual](https://core-electronics.com.au/attachments/localcontent/vma444_a4v02_40876428b76.pdf)

**Info Sheets**

- [VMA444 Scheme](https://core-electronics.com.au/attachments/localcontent/vma201_scheme_55469554fc0.pdf)
- [TPA6111A2 Datasheet](https://core-electronics.com.au/attachments/localcontent/tpa6111a2_datasheet_11836287e15.pdf)
- [Si4702/03-C19 Datasheet](https://core-electronics.com.au/attachments/localcontent/si4702_03c19_datasheet_17302f1b34f.pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/W/P/WPB444-1.jpg)