component
IL34119DT
Public Made by Adomby adom
IKSEMICON Audio Amplifiers, SOIC-8. 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
markdownIL34119DT
IKSEMICON · Audio Amplifiers · SOIC-8
IL34119DT from IKSEMICON, in a SOIC-8. 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 | CD | input | Chip Disable digital input: a logic 0 (<0.8 V) sets normal operation and a logic 1 (2.0 V) sets power-down mode, with nominal input impedance of 90 kΩ. |
| 2 | FC2 | passive | A capacitor at this pin increases power supply rejection and affects turn-on time, and the pin can be left open if the capacitor at FC1 is sufficient. |
| 3 | FC1 | passive | Analog ground for the amplifiers; a 1.0 µF capacitor here with a 5.0 µF capacitor at pin 2 provides 52 dB of power supply rejection, and the pin can be used as an alternate input. |
| 4 | VIN | power_in | Amplifier input whose input capacitor and resistor set the low-frequency rolloff and input impedance, with the feedback resistor connected between this pin and VO1. |
| 5 | VO1 | output | Amplifier output #1, with a DC level of (VCC - 0.7 V)/2. |
| 6 | VCC | power_in | DC supply voltage of +2.0 to +16 V is applied to this pin. |
| 7 | GND | power_in | Ground pin for the entire circuit. |
| 8 | VO2 | output | Amplifier output #2, equal in amplitude and 180 degrees out of phase with VO1, with a DC level of (VCC - 0.7 V)/2. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | IKSEMICON |
| Package | SOIC-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Output DC Level (VO1, VO2) | VO | 0.75 | 1.75 | V | VCC =3.0 V, RL =16 , Rf = 75 K | 4 | |
| Output High Level | VOH | 0.5 | V | IOUT = -75 mA, VCC = 2.0 V | 4 | ||
| Output Low Level | VOL | 0.55 | V | IOUT = 75 mA, 2.0 V VCC 16 V | 4 | ||
| Output DC Offset Voltage (VO1-VO2) | VO | -200 | 200 | mV | VCC =6.0 V, RL =32 , Rf = 75 k | 4 | |
| Input Bias Current @ VIN | IIB | 1600 | nA | VCC =6.0 V | 4 | ||
| Equivalent Resistance @ FC1 | RFC1 | 100 | 220 | K | VCC = 6.0 V | 4 | |
| Equivalent Resistance @ FC2 | RFC2 | 18 | 40 | K | VCC = 6.0 V | 4 | |
| Minimum High-Level Input Voltage | VIH | 2 | V | 4 | |||
| Maximum Low-Level Input Voltage | VIL | 0.8 | V | 4 | |||
| Input Resistance | RCD | 45 | 175 | K | VCC = VCD = 16 V | 4 | |
| AC Input Resistance (VIN) | ri | 22.5 | M | 5 | |||
| Open Loop Gain (Amplifier #1) | AVOL1 | 60 | dB | f = 100 Hz, VCC = 6.0 V, VFC2 = 2.65 V | 5 | ||
| Closed Loop Gain (Amplifier #2) | AV2 | -0.35 | 0.35 | dB | f = 1.0 KHz, VCC = 6.0 V, RL=32 | 5 | |
| Gain Bandwidth Product | GBW | 1.125 | MHz | 5 | |||
| Output Power | POUT3 | 55 | mW | VCC = 3.0 V, RL = 16 , THD 10%, VFC2 = 1.15 V | 5 | ||
| Output Power | POUT12 | 400 | mW | VCC = 12.0 V, RL = 100 , THD 10%, VFC2=12 V | 5 | ||
| Total Harmonic Distortion | THD | 5 | % | VCC = 6.0 V, RL = 32 , f = 1.0 KHz, POUT = 125 mW | 5 | ||
| Power Supply Rejection | PSRR | 35 | dB | VCC = 6.0 V, VCC = 3.0 V, C1 =, C2 = 0.01 F | 5 | ||
| Muting | GMT | 50 | dB | VCC = 6.0 V, f = 1.0 kHz, CD = 2.0 V | 5 | ||
| Maximum Power Supply Current (enabled) | ICC1 | 5 | mA | VCC =3.0 V, RL =,CD=0.8V | 5 | ||
| Maximum Power Supply Current (disabled) | ICC2 | 125 | A | VCC =3.0 V, RL =,CD=2.0V | 5 | ||
| Supply Voltage | VCC | 2 | 16 | V | 4 | ||
| Load Impedance | RL | 8 | 100 | Ω | 4 | ||
| Peak Load Current | IL | 200 | mA | 4 | |||
| Differential Gain (5.0 KHz bandwidth) | AVD | 0 | 46 | dB | 5.0 KHz bandwidth | 4 | |
| Voltage @ CD (Pin 1) | VCD | 0 | V | Pin 1 (CD); upper limit printed as VCC | 4 | ||
| Operating Temperature, All Package Types | TA | -20 | 70 | C | 4 | ||
| Supply Voltage | VCC | 18 | V | Printed range 1.0 to +18 V; lower bound extracted without sign | 3 | ||
| Maximum Output Current at VO1, VO2 | IOUT | 250 | mA | 3 | |||
| Maximum Input Voltage (FC1, FC2, CD, VIN) | VIN | -1 | V | Upper limit printed as VCC +1.0 V | 3 | ||
| Applied Output Voltage to VO1, VO2 when disabled | VVO | -1 | V | Upper limit printed as VCC +1.0 V | 3 | ||
| Storage Temperature Range | Tstg | -65 | 150 | C | 3 | ||
| Package Thermal Resistance, surface mount package | JA | 180 | C/W | Surface mount package (SOP8) | 3 |
CAD (KiCad official)
- Symbol:
IL34119DT - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
il34119dt-etched.step/il34119dt-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);il34119dt.step/il34119dt.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: IKSEMICON datasheet (7 pp, sha256
0f4f1ebfce86cbbc, retrieved 2026-10-18, tier: lcsc) - 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).