My Inquiry
My Account
Texas Instruments PGA2310PA
- Part No.:
- PGA2310PA
- Manufacturer:
- Texas Instruments
- Category:
- Audio Special Purpose
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
PGA2310PA.pdf
- Description:
- IC VOLUME CONTROL 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,559
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PGA2310PA from Texas Instruments is a stereo analog audio volume controller IC with independent left/right channels, ±15-V analog supply operation, 0.5-dB gain resolution (31.5 dB to −95.5 dB), zero-crossing detection for noise-free level transitions, and 3-wire serial control interface. It drives 600-Ω loads directly and targets professional audio signal routing in mixing consoles and broadcast equipment.
For engineers reviewing the PGA2310PA datasheet, PGA2310PA pinout, PGA2310PA application, or PGA2310PA equivalent, key selection considerations include its dual-channel analog gain architecture, ±15-V rail-to-rail input/output swing capability, mute/zero-crossing timing behavior, and compatibility with daisy-chained serial control topologies.
Technical Context
The PGA2310PA implements digitally controlled analog gain using a precision resistor ladder and bipolar op-amp output stage per channel, enabling true analog signal path integrity without DAC conversion. Its serial interface uses MSB-first straight-binary 16-bit words (8 bits per channel) clocked on SCLK rising edge, with SDO supporting daisy-chain expansion.
Zero crossing detection operates per channel with 16-ms timeout and automatic AGND muting during transitions; the MUTE pin (active-low) provides hardware-level channel silencing independent of serial commands. Analog inputs/outputs swing within 1.5 V of VA+ (15 V) and VA− (−15 V), delivering up to 27 VPP dynamic range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Range | 31.5 dB to −95.5 dB in 0.5-dB steps - enables precise attenuation control across professional audio dynamic ranges |
| Dynamic Range | 120 dB - preserves low-level signal detail in high-fidelity studio applications |
| THD+N | 0.0004% at 1 kHz - ensures minimal harmonic distortion in critical listening paths |
| Interchannel Crosstalk | −126 dBFS - prevents audible leakage between left/right stereo channels |
| Analog Supply | ±15 V (±4.5 V to ±15.5 V operating range) - supports large-swing line-level signals without clipping |
| Digital Supply | 5 V (4.5 V to 5.5 V) - compatible with standard microcontroller I/O voltage levels |
| Serial Clock Max | 6.25 MHz - allows fast gain updates (<1.6 µs per bit) for real-time volume automation |
Pinout & Package
PGA2310PA is housed in a 16-pin PDIP (Plastic Dual In-line Package) with 6.35 mm × 19.30 mm body size, designed for through-hole mounting and legacy audio PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 ZCEN | Zero Crossing Enable Input | Active-high control enabling noise-free gain transitions synchronized to input signal zero crossings |
| 2 CS | Chip Select Input | Active-low enable for serial data latching; required low for all SDI/SCLK operations |
| 3 SDI | Serial Data Input | MSB-first 16-bit gain word (R[7:0], L[7:0]) clocked on SCLK rising edge |
| 4 VD+ | Digital Power Supply | +5 V supply for internal logic and serial interface circuitry |
| 5 DGND | Digital Ground | Reference return for digital power and serial interface signals |
| 6 SCLK | Serial Clock Input | Input clock driving serial data transfer; max 6.25 MHz frequency |
| 7 SDO | Serial Data Output | Tristate output used for daisy-chaining multiple PGA2310 devices |
| 8 MUTE | Mute Control Input | Active-low hardware mute disabling both channels after next zero crossing or timeout |
| 9 VINR | Right Channel Analog Input | Unbalanced input referenced to AGNDR; accepts up to ±13.5 V swing |
| 10 AGNDR | Analog Ground (Right) | Signal reference for right channel input/output; must be isolated from DGND |
| 11 VOUTR | Right Channel Analog Output | Buffered output capable of driving 600-Ω loads directly |
| 12 VA+ | Positive Analog Supply | +15 V (±4.5 V to ±15.5 V range) powering op-amp stages and analog switches |
| 13 VA− | Negative Analog Supply | −15 V (±4.5 V to ±15.5 V range) completing bipolar analog supply rails |
| 14 VOUTL | Left Channel Analog Output | Independent buffered output matching VOUTR performance and drive capability |
| 15 AGNDL | Analog Ground (Left) | Signal reference for left channel; requires separate analog ground plane |
| 16 VINL | Left Channel Analog Input | Unbalanced input referenced to AGNDL; identical electrical specs to VINR |
Key Features
| Feature | Design Value |
|---|---|
| Noise-free gain transitions | Zero-crossing detection per channel eliminates audible clicks during volume changes |
| Dual independent channel control | Separate 8-bit gain registers (L[7:0], R[7:0]) allow asymmetric left/right level adjustment |
| Direct 600-Ω load drive | Integrated bipolar op-amp output stage eliminates need for external buffers in line-level designs |
| Daisy-chain serial interface | SDO-to-SDI cascading supports multi-device control with single host controller and three wires |
| Hardware mute with timing control | MUTE pin forces immediate channel silencing via AGND switching, synchronized to zero crossing |
Applications
| Broadcast Studio Equipment | Mixing Consoles |
|---|---|
Use Scenario: Master fader and channel trim control in analog/digital hybrid broadcast desks requiring silent level changes during live transmission. IC Role / Device Role / Timing Role: Stereo analog volume controller managing left/right program bus levels with zero-crossing synchronized gain updates. Use Value: −126 dBFS crosstalk and 120 dB dynamic range preserve stereo imaging and low-noise headroom in critical monitoring paths. |
Use Scenario: Input gain staging and group bus attenuation in analog-format recording consoles with motorized faders. IC Role / Device Role / Timing Role: Dual-channel analog gain element receiving serial commands from MCU-based fader logic. Use Value: ±15-V supplies support 24 VPP line-level signals; 0.5-dB steps enable precise calibration matching mechanical fader travel. |
| Multi-Track Recorders | Car Audio Systems |
Use Scenario: Track-level monitoring and mix-down bus control in standalone 16-track analog recorders with digital control panels. IC Role / Device Role / Timing Role: Stereo volume IC handling analog signal routing between tape transport outputs and headphone/line outputs. Use Value: Daisy-chain capability reduces MCU GPIO count when controlling multiple channel strips on same PCB. |
Use Scenario: Source-selectable volume control in OEM head units integrating AM/FM, Bluetooth, and USB audio inputs. IC Role / Device Role / Timing Role: Analog gain stage positioned post-DAC and pre-power amplifier, accepting serial commands from vehicle infotainment MCU. Use Value: 0.0004% THD+N ensures fidelity preservation in cabin acoustic environments where distortion masking is minimal. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stereo analog volume control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PGA2311PA | Pin- and software-compatible upgrade with improved THD+N (0.0002% vs. 0.0004%) and extended temperature range (−55°C to +125°C vs. −40°C to +85°C) | Preferred for new designs requiring higher fidelity or extended industrial temperature operation | Select PGA2311PA when upgrading legacy PGA2310PA designs for enhanced audio performance or wider thermal margin |
| CS3310-KS | Functionally similar stereo volume controller but uses I²C interface instead of SPI-like 3-wire serial; different pinout and register map | Suitable for systems already standardized on I²C peripherals, not drop-in replaceable due to protocol and layout differences | Choose CS3310-KS only when I²C infrastructure exists and PCB redesign is acceptable for interface migration |
Compared with PGA2310PA, PGA2311PA offers measurable THD+N improvement and broader temperature tolerance while maintaining full compatibility, whereas CS3310-KS requires interface redesign and offers no direct pin or timing equivalence.
Availability
PGA2310PA is available at Aetrix Electronics and suitable for broadcast studio equipment, mixing consoles, and multi-track recorders requiring stable component supply and long-lifecycle availability in through-hole audio designs.
Supply support for PGA2310PA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in high-performance audio signal chain solutions.
The PGA2310PA belongs to TI's professional audio analog volume controller product line, engineered specifically for low-distortion, wide-dynamic-range stereo gain control in studio-grade and broadcast audio systems.
FAQ
What is the maximum analog input voltage the PGA2310PA can handle?
The PGA2310PA supports analog input voltages from (VA−) + 1.5 V to (VA+) − 1.5 V. With ±15-V supplies, this yields a usable range of −13.5 V to +13.5 V, or 27 VPP. Exceeding these limits risks clipping or damage, as confirmed in Section 6.5 of the SBOS207C datasheet. The PGA2310PA maintains specified THD+N and dynamic range only within this voltage window.
Does the PGA2310PA require external output buffering when driving 600-Ω loads?
No, the PGA2310PA does not require external output buffering for 600-Ω loads. Its integrated bipolar op-amp output stage is explicitly rated for direct 600-Ω drive, as stated in the Features section and verified in Electrical Characteristics (Section 6.5). This eliminates external buffer components in line-level audio paths, reducing BOM cost and board space for the PGA2310PA.
How does zero crossing detection work on the PGA2310PA during gain changes?
When ZCEN is high, the PGA2310PA delays applying a new gain setting until two zero crossings are detected on the affected channel-or until a 16-ms timeout expires. During this period, the input multiplexer remains connected to AGND (mute state) if transitioning from mute, ensuring no audible artifacts. This behavior is documented in Section 7.3.5 and applies independently per channel in the PGA2310PA.
Can multiple PGA2310PA devices be controlled using a single serial interface?
Yes, the PGA2310PA supports daisy-chaining via its SDO output connected to the SDI input of the next device. Each PGA2310PA contributes 16 bits to the shift register, requiring 16 × N clock cycles (where N = number of devices) with CS held low. This topology is validated in Figure 12 and Section 7.3.4 of the PGA2310PA datasheet.
What is the power supply configuration required for proper operation of the PGA2310PA?
The PGA2310PA requires three independent supplies: VA+ (+15 V), VA− (−15 V), and VD+ (+5 V), with corresponding grounds (AGNDL, AGNDR, DGND) kept separate and joined at a single point. Section 9 and Figure 13 confirm this split-ground layout is mandatory to achieve 120-dB dynamic range and −126-dB crosstalk in the PGA2310PA.
PGA2310PA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- Volume Control
- Applications:
- Audio, Musical Instruments
- Number of Channels:
- 2
- Interface:
- SPI
- Voltage - Supply:
- ±4.5V ~ 15.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Specifications:
- 31.5dB ~ -95.5dB
- Mounting Type:
- Through Hole
- Grade:
- Automotive
PGA2310PA FAQ
1.How can I place an order for PGA2310PA through Aetrix?
Please submit a Request for Quotation (RFQ) for PGA2310PA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PGA2310PA reliable?
The price and inventory of PGA2310PA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PGA2310PA is usually 5 days.
3.What payment methods are accepted for PGA2310PA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PGA2310PA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PGA2310PA?
PGA2310PA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PGA2310PA order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PGA2310PA?
For technical support, including PGA2310PA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PGA2310PA requirements.
6.How does Aetrix verify that PGA2310PA is sourced from the original manufacturer or authorized distributors?
All PGA2310PA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PGA2310PA meets industry standards.
7.What is the process for return or replacement of PGA2310PA?
All PGA2310PA units undergo pre-shipment inspection (PSI). If there is an issue with PGA2310PA, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PGA2310PA part is unused and in its original packaging.
Return procedure for PGA2310PA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PGA2310PA Tags
-
SA571DR2G
onsemi
-
ADAU7002ACBZ-R7
Analog Devices Inc.
-
DRV135UA/2K5
Texas Instruments
-
DRV134UA/1K
Texas Instruments
-
DRV134PA
Texas Instruments
-
DRV134UA
Texas Instruments
-
DRV135UA
Texas Instruments
-
SA572DR2G
onsemi
-
PGA2311U/1K
Texas Instruments
-
SI8244BB-D-IS1R
Skyworks Solutions Inc.
-
CS8416K-CZZR
Cirrus Logic Inc.
-
SRC4392IPFBR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
