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PT7313E

Public Made by Adom

by adom

PTC(Princeton Tech) Audio Interface ICs, SOP-28-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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PT7313E

PTC(Princeton Tech) · Audio Interface ICs · SOP-28-300mil

PT7313E from PTC(Princeton Tech), in a SOP-28-300mil. 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 REF passive Analog reference voltage at 1/2VDD; its external capacitor (CREF) sets the I2C initial time after power-on.
2 VDD power_in Supply input voltage, specified from 4V to 10V with 10V as the absolute maximum.
3 AGND power_in Analog ground reference for the audio signal paths.
4 TREB_L input Left channel input for the treble controller.
5 TREB_R input Right channel input for the treble controller.
6 RIN input Right channel volume controller input.
7 ROUT output Right channel input selector output, requiring a minimum load of 5 kΩ.
8 LOUD_R input Right channel loudness input.
9 RIN3 input Right channel input 3 to the input selector.
10 RIN2 input Right channel input 2 to the input selector.
11 RIN1 input Right channel input 1 to the input selector.
12 LOUD_L input Left channel loudness input.
13 LIN3 input Left channel input 3 to the input selector.
14 LIN2 input Left channel input 2 to the input selector.
15 LIN1 input Left channel input 1 to the input selector.
16 LIN input Left channel volume controller input.
17 LOUT output Left channel input selector output, requiring a minimum load of 5 kΩ.
18 BIN_L input Left channel input for the bass controller.
19 BOUT_L output Left channel output of the bass controller.
20 BIN_R input Right channel input for the bass controller.
21 BOUT_R output Right channel output of the bass controller.
22 RROUT output Right rear speaker output.
23 LROUT output Left rear speaker output.
24 RFOUT output Right front speaker output.
25 LFOUT output Left front speaker output.
26 DGND power_in Digital ground for the I2C control logic.
27 SDA bidirectional I2C data line; the datasheet lists it as the I2C data input, and the slave pulls it low for acknowledge with a 0.4 V pull-down voltage at 3 kΩ pull-up.
28 SCL input I2C clock input; data on SDA is valid only while SCL is HIGH.

Key specifications

Parameter Value
Manufacturer PTC(Princeton Tech)
Package SOP-28-300mil
Category Interface ICs
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
Operating supply voltage VDD 10 V 11
Latch up current Iin -100 100 mA 11
ESD grade Human body model HBM -2 2 KV 11
ESD grade Machine model MM -0.2 0.2 KV 11
Input voltage Vin -0.3 V 11
Operating temperature Topr -40 85 ℃ 11
Storage temperature Tstg -65 150 ℃ 11
Supply voltage VDD 5 9 10 V 12
Supply current Is 30 40 mA VDD=9V 12
Supply current Is 25 32 mA VDD=5V 12
Input resistance RIN 35 50 70 KΩ Input 1, 2, 3 12
Max. input level Vimax 2.3 2.6 Vrms All Gain=0dB; THD=1% 12
Input separation ISIN 90 100 dB F=20 ~ 20KHz 12
Min. input gain GINmin -1 0 1 dB 12
Max. input gain GINmax 10.5 11.25 12 dB 12
Step resolution GINst 3.75 dB 12
Gain set error EA -1 0 1 dB 12
Minimum load RL 5 KΩ Vo=2Vrms, LOUT, ROUT 12
DC offset VDCO 3 10 mV 0dB to +11.25dB 12
Input resistance RIN 13 20 27 KΩ VOL=0dB 12
Min. attenuation AVMIN -1 0 1 dB 12
Max. attenuation AVMAX -75 -78.75 -82 dB 12
Step resolution ASTEP 1.15 1.25 1.3 dB 12
Attenuation set error EA -1 0 1 dB VOL=0 ~ -70dB 12
Max. Gain AVMIN -1 0 1 dB 12
Max. attenuation AVMAX -36 -37.5 -39 dB 12
Step resolution SSTEP 1.15 1.25 1.35 dB 12
Output mute attenuation AMUTE 100 dB 12
DC offset VDCO 5 10 mV 0dB to MUTE 12
Control range Gb 12 14 16 dB Max. Boost/Cut; printed ± 12
Step resolution BSTEP 1.7 2 2.3 dB 12
Feedback resistance RB 34 44 58 KΩ 12
Boost gain GLD 18 20 22 dB Volume=-40dB, F=20Hz 12
Max. output level VOMAX 2.3 2.6 Vrms THD=1% 12
DC voltage level VOUT 0.49 0.5 0.51 VDD 12
Signal to noise ratio SNR 100 dBV All Gain=0dB, A-weighted 12
Distortion THD 0.03 0.07 % All Gain=0, Vin=1Vrms 12
Distortion THD 0.01 0.03 % All Gain=0, Vin=100Vrms 12
Channel separation Cs 90 100 dB L to R or R to L channel 12
I2C crosstalk Ct 90 dB I2C to audio output 12
Ripple rejection PSRR 75 dB CREF=22µF, F=100Hz 12
Input low voltage VIL 1 V VDD=9V 12
Input high voltage VIH 3 V VDD=9V 12
Input current IIN -5 5 µA 12
SDA pull down voltage Vack 0.4 V Rpull up=3K, ACK=active 12

CAD (KiCad official)

  • Symbol: PT7313E
  • Footprint: Package_SO:SOP-28_8.4x18.16mm_P1.27mm
  • 3D model: SOP-28-300mil (KiCad packages3D, STEP)
  • 3D model files: pt7313e-etched.step / pt7313e-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pt7313e.step / pt7313e.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: PTC(Princeton Tech) datasheet (16 pp, sha256 1a75d924b985be35, retrieved 2026-10-27, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus off (skipped (clean text read)), 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).

Datasheet PDF