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NXP Semiconductors TDA9830T/V1,118
- Part No.:
- TDA9830T/V1,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Video Processing
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TDA9830T/V1,118.pdf
- Description:
- IC VIDEO DEMODULATOR 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,180
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Product details
Overview
TDA9830T/V1,118 from NXP Semiconductors (formerly Philips) is a monolithic TV sound AM-demodulator and audio source switch IC designed for L- and L'-standard analog television receivers. It integrates a wideband synchronous AM demodulator (6–70 MHz IF bandwidth), low-noise audio mute/switch function, and dual-supply operation (5–8 V or 12 V). It delivers 500 mV RMS AF output with 53 dB S/N ratio (CCIR 468-3) and 90 dB mute attenuation.
For engineers reviewing the TDA9830T/V1,118 datasheet, TDA9830T/V1,118 pinout, TDA9830T/V1,118 application, or TDA9830T/V1,118 equivalent, key selection criteria include its dual-voltage supply flexibility, differential IF input architecture, AGC-controlled gain range (66 dB typ), THD < 0.8% at AF output, and SO-16 package compatibility with legacy TV signal path designs.
Technical Context
The TDA9830T/V1,118 implements a three-stage AC-coupled differential IF amplifier with current-distribution gain control (−6 to +60 dB range), followed by a limiting amplifier and phase-sensitive multiplier for synchronous AM demodulation. Its AGC loop uses a mean-level detector with dual-mode discharge (5 µA slow + 5 mA fast) to balance stability and transient response.
The audio switch employs an op-amp-based triple-input stage (AMIN, EXTIN, internal reference) with digitally controlled selection via SWITCH (pin 10) and MUTE (pin 12), delivering 0 dB gain, 700 kHz −3 dB bandwidth, and ≤10 mV DC-plop during switching - enabled by matched DC bias between AMOUT (pin 6) and audio switch inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF Bandwidth | 6–70 MHz (−3 dB); supports full L/L′ standard IF frequencies without external tuning |
| AF Output Signal | 500 mV RMS (typ); sufficient drive level for downstream audio amplifiers without buffering |
| S/N Ratio | 53 dB (CCIR 468-3 weighted); meets EN50049 broadcast audio quality requirements |
| Mute Attenuation | 90 dB (20 Hz–20 kHz); ensures silent channel switching in multi-source TV systems |
| Supply Voltage Options | 5–8 V (pin 14) or 12 V (pin 11); internal voltage divider enables safe 12 V operation with 6 V core rail |
| THD (AF Output) | 0.8% (typ at 1 kHz); maintains fidelity across broadcast audio spectrum |
| Input Resistance (IF) | 2.2 kΩ (typ); matches standard 2.2 kΩ IF transformer secondary impedances |
Pinout & Package
Package: SO-16 (SOT109-1), plastic small outline, 3.9 mm body width, 1.27 mm lead pitch, surface-mount compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IFIN (1,16) | Differential IF input | Accepts balanced 32.4 MHz sound carrier; 2.2 kΩ input impedance matches IF transformers |
| AMOUT (6) | AM demodulator output | 500 mV RMS AF signal; DC-biased at ~2.15 V to minimize coupling capacitor in audio switch path |
| AMIN (7), EXTIN (9) | Audio switch inputs | Support internal AM or external audio source; 50 kΩ input resistance avoids loading previous stages |
| SWITCH (10), MUTE (12) | Digital control inputs | Logic-level select/mute (0–0.8 V low, 1.5–VP high); enable silent source transitions without PCB-level logic |
| Vp1 (14), Vp2 (11) | Power supplies | Independent 5–8 V and 12 V rails; unused rail must be left unconnected per spec |
Key Features
| Feature | Design Value |
|---|---|
| Adjustment-free synchronous AM demodulation | Eliminates external alignment components; stable over temperature and aging in consumer TV chassis |
| Integrated audio source selector with mute | Reduces BOM count by replacing discrete switches, relays, and mute transistors in TV audio paths |
| AGC with fast/slow dual-mode discharge | Prevents audio pumping on strong IF transients while maintaining steady-state level accuracy |
| Matched DC bias between AMOUT and audio switch | Enables direct pin-6-to-pin-7 connection, removing coupling capacitor and saving board space |
| Ripple rejection (30 dB) | Suppresses power supply noise from affecting AF output - critical in shared 5/12 V TV power domains |
Applications
| TV Set-Top Box Audio Path | L-Standard Analog TV Receiver |
|---|---|
Use Scenario: Demodulating sound carrier from analog terrestrial broadcast signals and routing audio to speaker amplifier. IC Role / Device Role / Timing Role: Primary AM demodulator and audio source selector in IF-to-AF signal chain. Use Value: Delivers EN50049-compliant audio with 53 dB S/N and <0.8% THD without external gain staging or filtering. | Use Scenario: Supporting dual audio sources (internal tuner + external AV input) with seamless mute during channel change. IC Role / Device Role / Timing Role: Integrated audio switch and mute controller synchronized to tuner PLL lock timing. Use Value: Achieves ≤10 mV DC-plop during switching via internally matched bias, eliminating pop/click artifacts. |
| Legacy Broadcast Monitor Audio | Professional Video Test Equipment |
Use Scenario: Extracting clean audio from composite video test signals in studio monitoring gear. IC Role / Device Role / Timing Role: High-fidelity AM demodulator with 70 MHz IF bandwidth for wideband signal analysis. Use Value: Maintains 90 dB crosstalk suppression and 500 mV output drive into 10 kΩ loads for scope/audio analyzer interfaces. | Use Scenario: Calibrating IF alignment and audio response in TV production line test fixtures. IC Role / Device Role / Timing Role: Reference-grade AM demodulator with stable 66 dB gain control for repeatable measurements. Use Value: Provides ±0.5 dB gain tolerance and 60–70 MHz flat IF response, enabling traceable pass/fail thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar AM demodulator and audio switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDA9830N | DIP-16 (SOT38) package; identical electrical specs; higher thermal resistance (74 K/W vs. 100 K/W) | Through-hole assembly; less suitable for high-density surface-mount TV mainboards | Select TDA9830N only when DIP footprint and manual repairability are required. |
| LA7555 | Single 5 V supply only; no 12 V option; 45 dB S/N (vs. 53 dB); 75 dB mute attenuation (vs. 90 dB) | Lower-cost NTSC/PAL TVs where EN50049 compliance is not mandated | Choose LA7555 for cost-sensitive designs accepting reduced dynamic range and mute depth. |
Compared with TDA9830N and LA7555, the TDA9830T/V1,118 offers superior S/N ratio, deeper mute attenuation, and SO-16 surface-mount compatibility - making it optimal for modern compact analog TV receiver designs requiring broadcast-grade audio fidelity and automated assembly.
Availability
TDA9830T/V1,118 is available at Aetrix Electronics and suitable for analog TV receiver design, broadcast monitor development, and legacy video test equipment manufacturing requiring stable component supply and long-term obsolescence management.
Supply support for TDA9830T/V1,118 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
NXP Semiconductors is a global semiconductor company formed from the spin-off of Philips' semiconductor division, specializing in secure connectivity solutions for automotive, industrial, and consumer electronics.
The TDA9830T/V1,118 belongs to NXP's legacy analog TV signal processing product line, engineered specifically for L- and L′-standard AM sound demodulation and audio routing in analog broadcast receivers.
FAQ
What is the primary function of the TDA9830T/V1,118 in analog TV systems?
The TDA9830T/V1,118 serves as a combined AM sound demodulator and audio source switch for L- and L′-standard analog television receivers. It extracts audio from the 32.4 MHz sound IF carrier using synchronous demodulation, then routes the resulting AF signal - or an external audio source - to the output while supporting mute functionality. Its design eliminates manual alignment and supports both 5–8 V and 12 V supply configurations, making the TDA9830T/V1,118 a self-contained solution for broadcast-quality audio recovery in legacy TV chassis.
Can the TDA9830T/V1,118 operate from a 12 V supply without external regulation?
Yes, the TDA9830T/V1,118 includes an internal voltage divider and Darlington transistor stage that reduces the 12 V supply (applied to pin 11) to approximately 6 V for internal circuit blocks. This allows direct 12 V operation while protecting modern high-frequency IC components rated for ≤9 V. The datasheet specifies that the unused supply pin (Vp1 or Vp2) must remain unconnected, and performance remains comparable to 5 V operation - confirming that the TDA9830T/V1,118 is fully self-regulating for either supply mode.
What is the significance of the matched DC bias between AMOUT (pin 6) and the audio switch inputs?
The TDA9830T/V1,118 is designed so that AMOUT (pin 6) and the audio switch inputs (pins 7 and 9) share nearly identical DC bias voltages (~2.15 V), minimizing DC offset during switching. This allows direct connection of pin 6 to pin 7 without an AC-coupling capacitor - reducing component count, board area, and potential low-frequency distortion. When used this way, DC-plop remains ≤100 mV (per datasheet note 5), making the TDA9830T/V1,118 uniquely suited for space-constrained TV designs where capacitor elimination is advantageous.
How does the AGC system in the TDA9830T/V1,118 handle rapid IF signal changes?
The TDA9830T/V1,118 implements a dual-mode AGC: a slow 5 µA charge/discharge path for stable level control, plus a fast 5 mA discharge path triggered by an internal comparator during IF overload. This prevents audio pumping on sudden signal surges (e.g., channel change or impulse noise) while maintaining accurate average-level tracking during steady-state reception. The AGC capacitor at pin 3 sets the time constant - larger values improve low-frequency THD but slow response - and the TDA9830T/V1,118's architecture balances both needs without external compensation.
Is the TDA9830T/V1,118 pin-compatible with other members of the TDA9830 family?
Yes, the TDA9830T/V1,118 shares identical pinout and electrical behavior with the TDA9830N (DIP-16) variant - differing only in package (SO-16 vs. DIP-16) and thermal characteristics. Both use the same SOT109/SOT38 footprint mapping, identical pin functions (e.g., IFIN on pins 1/16, AMOUT on pin 6), and identical absolute maximum ratings. This allows drop-in replacement in existing layouts where SO-16 reflow assembly is preferred, confirming that the TDA9830T/V1,118 maintains full functional and mechanical interoperability within its family.
TDA9830T/V1,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Demodulator
- Applications:
- Consumer Video
- Standards:
- -
- Control Interface:
- -
- Voltage - Supply:
- 4.5V ~ 8.8V, 10.8V ~ 13.2V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-SO
TDA9830T/V1,118 FAQ
1.How can I place an order for TDA9830T/V1,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for TDA9830T/V1,118 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 TDA9830T/V1,118 reliable?
The price and inventory of TDA9830T/V1,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDA9830T/V1,118 is usually 5 days.
3.What payment methods are accepted for TDA9830T/V1,118?
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4.How is shipping managed for TDA9830T/V1,118?
TDA9830T/V1,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDA9830T/V1,118 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 TDA9830T/V1,118?
For technical support, including TDA9830T/V1,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDA9830T/V1,118 requirements.
6.How does Aetrix verify that TDA9830T/V1,118 is sourced from the original manufacturer or authorized distributors?
All TDA9830T/V1,118 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 TDA9830T/V1,118 meets industry standards.
7.What is the process for return or replacement of TDA9830T/V1,118?
All TDA9830T/V1,118 units undergo pre-shipment inspection (PSI). If there is an issue with TDA9830T/V1,118, 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 TDA9830T/V1,118 part is unused and in its original packaging.
Return procedure for TDA9830T/V1,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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