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TM2314
Public Made by Adomby adom
TM(Shenzhen Titan Micro Elec) Audio Interface ICs, SOP-28. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTM2314
TM(Shenzhen Titan Micro Elec) · Audio Interface ICs · SOP-28
TM2314 from TM(Shenzhen Titan Micro Elec), in a SOP-28. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VDD | power_in | Supply voltage pin; the datasheet gives an operating voltage VS of 6 V min, 9 V typ, 10 V max. |
| 2 | AGND | power_in | Analog ground pin for the audio signal path. |
| 3 | TREB_L | input | Left-channel treble control pin. |
| 4 | TREB_R | input | Right-channel treble control pin. |
| 5 | RIN | input | Right-channel input to the audio effects processor. |
| 6 | ROUT | output | Right-channel source output after selected-gain amplification. |
| 7 | LOUD_R | input | Right-channel loudness control pin. |
| 8 | RIN4 | input | Right-channel audio source 4 input. |
| 9 | RIN3 | input | Right-channel audio source 3 input. |
| 10 | RIN2 | input | Right-channel audio source 2 input. |
| 11 | RIN1 | input | Right-channel audio source 1 input. |
| 12 | LOUD_L | input | Left-channel loudness control pin. |
| 13 | LIN4 | input | Left-channel audio source 4 input. |
| 14 | LIN3 | input | Left-channel audio source 3 input. |
| 15 | LIN2 | input | Left-channel audio source 2 input. |
| 16 | LIN1 | input | Left-channel audio source 1 input. |
| 17 | LIN | input | Left-channel input to the audio effects processor. |
| 18 | LOUT | output | Left-channel source output after selected-gain amplification. |
| 19 | BIN_L | input | Left-channel bass processing input. |
| 20 | BOUT_L | output | Left-channel bass processing input/output pin. |
| 21 | BIN_R | input | Right-channel bass processing input. |
| 22 | BOUT_R | output | Right-channel bass processing input/output pin. |
| 23 | OUT_R | output | Right speaker channel output. |
| 24 | OUT_L | output | Left speaker channel output. |
| 25 | DGND | power_in | Digital ground pin. |
| 26 | DATA | input | Data input pin of the serial control bus. |
| 27 | CLK | input | Clock pin of the serial control bus. |
| 28 | REF | passive | Reference voltage pin at 1/2 VDD. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TM(Shenzhen Titan Micro Elec) |
| Package | SOP-28 |
| Category | Communication Interface Chip/UART/485/232 |
| Pins | 28 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| 工作电压 | VS | 6 | 9 | 10 | V | 3 | |
| 静态电流 | IS | 30 | 40 | mA | 3 | ||
| 纹波抑制比 | SVR | 60 | 80 | dB | 3 | ||
| 输入电阻 | Rin | 35 | 50 | 70 | KΩ | 输入 1，2，3， | 3 |
| 削波限幅 | Vcl | 2 | 2.5 | Vrms | 3 | ||
| 输入隔离 | Sin | 80 | 100 | dB | 3 | ||
| 输出负载电阻 | RI | 2 | KΩ | 脚位 7，17 | 3 | ||
| 最小输入增益 | Ginmin | -1 | 0 | 1 | dB | 4 | |
| 最大输入增益 | Ginmax | 11.25 | dB | 4 | |||
| 音量控制输入电阻 | Riv | 20 | 33 | 50 | KΩ | 4 | |
| 音量控制范围 | Crange | 70 | 75 | 80 | dB | 4 | |
| 最小衰减 | Avmin | -1 | 0 | 1 | dB | 4 | |
| 最大衰减 | Avmax | 70 | 75 | 80 | dB | 4 | |
| 衰减分辨率 | Astep | 0.5 | 1.25 | 1.75 | dB | 4 | |
| 衰减误差 | Ea | -1.25 | 0 | 1.25 | dB | Av=0~20 dB | 4 |
| 衰减误差 | Ea | -3 | 2 | dB | Av=-20~-60 dB | 4 | |
| 循迹误差 | Et | 2 | dB | 4 | |||
| 直流调整 相邻衰减级别 | Vdc | 0 | 3 | mV | 相邻衰减级别 | 4 | |
| 直流调整 由0~最大Av | Vdc | 0.5 | 7.5 | mV | 由 0~最大 Av | 4 | |
| 扬声器衰减控制范围 | Crange | 35 | 37.5 | 40 | dB | 4 | |
| 扬声器衰减分辨率 | Sstep | 0.5 | 1.25 | 1.75 | dB | 4 | |
| 扬声器衰减误差 | Ea | 1.5 | dB | 4 | |||
| 输出静音衰减 | Amute | 80 | 100 | dB | 4 | ||
| 扬声器直流等级 相邻衰减级别 | Vdc | 0 | 3 | mV | 相邻衰减级别 | 4 | |
| 扬声器直流等级 由0到静音 | Vdc | 1 | 10 | mV | 由 0 到静音 | 4 | |
| 低音控制范围(最大放大/衰减) | Gb | 12 | 14 | 16 | dB | 最大放大/衰减 | 4 |
| 低音分辨率 | Bstep | 1 | 2 | 3 | dB | 4 | |
| 低音内部反馈电阻 | Rb | 34 | 44 | 58 | KΩ | 4 | |
| 高音控制范围(最大放大/衰减) | Gt | 13 | 14 | 15 | dB | 最大放大/衰减 | 4 |
| 高音分辨率 | Tstep | 1 | 2 | 3 | dB | 4 | |
| 削波限幅 | Vocl | 2 | 2.5 | Vrms | D=0.3% | 4 | |
| 输出负载电容 | CI | 10 | nF | 4 | |||
| 输出电阻 | Rout | 30 | 75 | 120 | Ω | 4 | |
| 直流电压等级 | Vout | 4.2 | 4.5 | 4.8 | V | 4 | |
| 输出噪声 | Eno | 2.5 | 5 | 15 | uV | BW=20~20kHz，输出静音，增益=0 dB | 4 |
| 信噪比 | S/N | 106 | dB | ALL=0 dB；Vo=1Vrms | 4 | ||
| 左右声道隔离 | Sc | 80 | 103 | dB | 5 | ||
| 输入低电压 | Vil | 1 | V | 5 | |||
| 输入高电压 | Vih | 3 | V | 5 | |||
| 输入电流 | lin | -5 | 5 | uA | 5 | ||
| 输出电压(低) | Vo | 0.4 | V | Io=1.6mA | 5 | ||
| 工作温度 | Topt | -40 | 80 | ℃ | 5 | ||
| 储存温度 | Tstg | -65 | 150 | ℃ | 5 | ||
| 最小输入增益(步进) | Gstep | 3.75 | dB | 4 | |||
| 输入噪声 | Ein | 2 | μV | G=11.25dB | 4 | ||
| 输出噪声 | Eno | 3 | uV | 增益曲线=0 dB | 4 |
CAD (KiCad official)
- Symbol:
TM2314 - Footprint:
Package_SO:SOP-28_8.4x18.16mm_P1.27mm - 3D model: SOP-28 (KiCad packages3D, STEP)
- 3D model files:
tm2314-etched.step/tm2314-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tm2314.step/tm2314.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TM(Shenzhen Titan Micro Elec) datasheet (12 pp, sha256
5603b65a4666ff5a, retrieved 2026-10-30, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).