Inx In518 Ic Pinout Diagram Top Instant

| Pin # | Name | Type | Description (Typical for IN518) | |-------|------|------|--------------------------------| | 1 | VDD | Power | 3.3V supply | | 2 | GND | Ground | Ground | | 3 | IF_P | Output | I/Q Positive signal output | | 4 | IF_N | Output | I/Q Negative signal output | | 5 | GND | Ground | Ground | | 6 | VCO_IN | Input | VCO tuning voltage | | 7 | GND | Ground | Ground | | 8 | CLK_IN | Input | Reference clock input | | 9-16 | NC | - | Not connected internally | | 17-24 | NC | - | Not connected internally | | 25 | GND | Ground | Ground | | 26 | RESET | Input | Chip reset (active low) | | 27 | GND | Ground | Ground | | 28 | VDD_PA | Power | Power amplifier supply | | 29 | RF_OUT | Output | Transmitter RF output | | 30 | GND | Ground | Ground | | 31 | VDD | Power | 3.3V supply | | 32 | GND | Ground | Ground |

Center Pad (Exposed Die Pad): Must be connected to GND for proper thermal and electrical performance.

| Pin # | Name | Type | Description | |-------|----------|-----------|------------------------------------------------| | 1 | VDD33 | Power | 3.3V main digital supply | | 2 | VDD18 | Power | 1.8V internal core supply (decouple with 1µF) | | 3 | RESET_N | Input | Active-low system reset (pull-up to 3.3V) | | 4 | INT_N | Output | Interrupt to host (new touch data ready) | | 5 | SCL | I2C clock | I2C serial clock (open-drain, pull-up) | | 6 | SDA | I2C data | I2C serial data (open-drain) | | 7 | TEST | Input | Tie to GND for normal operation | | 8 | VSS | Ground | Digital ground | | 9-20 | TX[0:11] | Output | TX drive lines to touch sensor (0–11) | | 21-32 | RX[0:11] | Input | RX sense lines from touch sensor (0–11) | | 33 | AVDD | Power | Analog 3.3V supply (clean, separate from VDD33)| | 34 | AGND | Ground | Analog ground (connect to main ground via ferrite)| | 35 | VREF | Reference | ADC reference voltage (0.1µF to AGND) | | 36 | CAP_INT | Capacitor | External 2.2µF for internal charge pump | | 37-48 | NC | – | No connect / reserved (leave floating) | inx in518 ic pinout diagram top

Note: Pin 1 location is indicated by a small dot or chamfered edge on the top-left of the IC package.

The INX IN518 is a small integrated circuit commonly used for [assumed function: e.g., power management / audio amplifier / voltage regulator — manufacturer datasheet needed for exact role]. Below is a concise, structured review focused on the top-view pinout, typical functions, and practical notes for designers. | Pin # | Name | Type |

If the IX518 you have is an 8-pin package (common for dual MOSFETs or complex drivers), the pinout is as follows:

       Top View
      ___________
     /           \
    |  o      o   |
    |  1      8   |
    |             |
    |  2      7   |
    |             |
    |  3      6   |
    |             |
    |  4      5   |
    |_____________|

Typical IXYS IX518 Pin Functions (Example Configuration): Note: Pin 1 location is indicated by a

| Component | Value | Purpose | | :--- | :--- | :--- | | C1 (Input cap) | 10µF / 10V X5R | Input filtering & stability | | C2 (Output cap) | 10µF / 6.3V X5R | Output smoothing & transient response | | C3 (Bypass cap) | 100nF / 10V | Noise reduction (optional) | | R1 (Pull-up) | 100kΩ | Enable active high (optional if EN tied to IN) |

When looking at the Top of the IC (the side with the writing on it):

| Symptom | Likely Cause | Solution | | :--- | :--- | :--- | | No output voltage | EN pin floating or low | Pull EN to VIN via a 100k resistor | | Output voltage is low (e.g., 1.2V) | Output shorted or overcurrent | Check load resistance; measure OUT to GND | | Output is noisy/oscillating | Missing bypass cap on pin 4 | Add 10nF – 100nF from pin 4 to GND | | IC overheats | Excessive dropout voltage or load | Reduce VIN - VOUT differential; add heatsink | | Wrong output voltage | Misidentified top marking | Measure with DMM; compare to expected suffix |