LM567CDRG

@@ -0,0 +1,47 @@+# LM567CDRG++**HANSCHIP semiconductor** · Audio Interface ICs · SOP-8++LM567CDRG from HANSCHIP semiconductor, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | OUTPUT FILTER | passive | Low-pass loop filter capacitor connection. External capacitor C2 to ground sets the output filter time constant and affects the detection bandwidth. |+| 2 | LOOP FILTER | passive | Loop low-pass filter capacitor connection. External capacitor C3 to ground sets the loop filter bandwidth (detection bandwidth of the tone decoder). |+| 3 | INPUT | input | Tone input. AC-coupled input signal to be detected; input impedance approximately 20 kΩ. Minimum input signal for detection typically 20 mVrms. |+| 4 | V+ | power_in | Positive supply voltage. Operating range 4.75 V to 9 V (absolute maximum 10 V). Supply current typically 7 mA at 5 V. |+| 5 | TIMING R | passive | Timing resistor connection. External resistor R1 (2 kΩ to 20 kΩ) from this pin to V+ sets the VCO center frequency together with C1 on pin 6. Center frequency f0 ≈ 1/(1.1·R1·C1). |+| 6 | TIMING C | passive | Timing capacitor connection. External capacitor C1 from this pin to ground sets the VCO center frequency in combination with R1 on pin 5. Frequency range 0.01 Hz to 500 kHz. |+| 7 | GND | power_in | Ground reference for the device. |+| 8 | OUTPUT | output | Open-collector logic output. Sinks up to 100 mA (typ) to ground when an in-band tone is detected; otherwise high-impedance. Requires external pull-up resistor to V+ (up to 15 V). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | HANSCHIP semiconductor |+| Package | SOP-8 |+| Category | Interface |+| Pins | 8 |++## Ordering variants++- `LM567CDRGDRG`++## CAD (KiCad official)++- Symbol: `LM567CDRG`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOP-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [HANSCHIP semiconductor datasheet](docs/lm567cdrg-datasheet.pdf) (11 pp, sha256 `47493fb452db0161`, retrieved 2026-08-17, tier: lcsc)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/lm567cdrg-datasheet.pdf)

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