TLC320AC02IFN Equivalent & Substitute Parts

Part Overview

The TLC320AC02IFN is a single-channel audio interface codec manufactured by Texas Instruments, designed for bandwidth-limited audio applications. This 14-bit serial interface component operates across a 4.5V to 5.5V supply range and is housed in a 28-PLCC package. The part maintains Active product status with full RoHS3 compliance and REACH unaffected certification.

Substitute parts become necessary when the original TLC320AC02IFN is unavailable, when design requirements shift toward higher resolution audio processing, or when alternative packaging configurations better suit manufacturing constraints.

Key Parameters

Parameter	TLC320AC02IFN
Manufacturer	Texas Instruments
Category	Interface
Type	Audio
Resolution (Bits)	14 b
Number of ADCs / DACs	1 / 1
Data Interface	Serial
Voltage - Supply, Analog	4.5V ~ 5.5V
Voltage - Supply, Digital	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	28-LCC (J-Lead)
Product Status	Active
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	4 (72 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the TLC320AC02IFN is determined by the following critical parameters:

Primary Substitution Criteria:

Single-channel ADC/DAC configuration (1/1)
Serial data interface architecture
Surface mount technology
Operating temperature range: -40°C to 85°C
RoHS3 compliance and REACH unaffected status
Active product status

Secondary Compatibility Factors:

Resolution bit depth (14-bit baseline; 16-bit substitutes acceptable for higher fidelity requirements)
Supply voltage compatibility (original requires 4.5V ~ 5.5V; substitutes may operate at lower voltage ranges with design accommodation)
Package form factor (alternative packages acceptable if PCB layout permits)

The three qualified substitute parts—TLV320AIC14IDBT, TLV320AIC11IPFB, and TLV320AIC13IDBT—all maintain the core 1/1 ADC/DAC architecture, serial interface, and temperature specifications. All substitutes exceed the original 14-bit resolution with 16-bit capability and retain full compliance certifications.

Parameter Comparison

Parameter	TLC320AC02IFN	TLV320AIC14IDBT	TLV320AIC11IPFB	TLV320AIC13IDBT
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Category	Interface	Interface	Interface	Interface
Resolution (Bits)	14 b	16 b	16 b	16 b
Number of ADCs / DACs	1 / 1	1 / 1	1 / 1	1 / 1
Data Interface	Serial	Serial	Serial	Serial
Sigma Delta	No	Yes	Yes	Yes
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	28-LCC (J-Lead)	30-TFSOP (0.173", 4.40mm Width)	48-TQFP (7x7)	30-TFSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All three substitute parts maintain Active product status with full RoHS3 compliance and REACH unaffected certification, matching the regulatory posture of the original TLC320AC02IFN.

TLV320AIC14IDBT operates at reduced analog supply voltage (2.7V ~ 3.6V) and digital supply voltage (1.65V ~ 1.95V), requiring power supply redesign if the original 4.5V ~ 5.5V architecture is retained. This part is packaged in 30-TSSOP format with improved moisture sensitivity (MSL 2, 1 Year versus MSL 4, 72 Hours).

TLV320AIC11IPFB maintains analog supply voltage compatibility (3V ~ 5.5V) with the original design envelope and digital supply voltage (4.5V ~ 5.5V) matching the TLC320AC02IFN specification. This part is packaged in 48-TQFP format and offers the highest S/N ratio performance (90 dB ADC / 87 dB DAC).

TLV320AIC13IDBT shares identical electrical specifications with TLV320AIC14IDBT, including reduced supply voltages (2.7V ~ 3.6V analog, 1.65V ~ 1.95V digital) and 30-TSSOP packaging with MSL 2 moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can TLV320AIC14IDBT or TLV320AIC13IDBT be used as direct drop-in replacements?

A: No. Both parts require reduced supply voltages (2.7V ~ 3.6V analog, 1.65V ~ 1.95V digital) compared to the TLC320AC02IFN (4.5V ~ 5.5V). Power supply redesign is necessary. Additionally, the 30-TSSOP package differs from the original 28-PLCC, requiring PCB layout modification.

Q: Which substitute offers the best supply voltage compatibility?

A: TLV320AIC11IPFB maintains the closest supply voltage alignment with analog supply range 3V ~ 5.5V and digital supply 4.5V ~ 5.5V, allowing potential reuse of existing power distribution architecture. However, the 48-TQFP package requires different PCB footprint design.

Q: What is the significance of Sigma Delta architecture in the substitutes?

A: All three substitutes employ Sigma Delta modulation, whereas the original TLC320AC02IFN does not. This architectural difference affects noise shaping and filtering characteristics but does not prevent functional substitution for single-channel serial audio interface applications.

Q: Are all substitutes suitable for the same operating temperature range?

A: Yes. All three substitute parts operate across -40°C to 85°C, matching the original TLC320AC02IFN specification.

Q: What packaging considerations apply to each substitute?

A: TLV320AIC14IDBT and TLV320AIC13IDBT use 30-TSSOP packaging (0.173" width, 4.40mm). TLV320AIC11IPFB uses 48-TQFP (7x7mm). Each requires distinct PCB footprint design and assembly process parameters.

Q: Do all substitutes maintain equivalent compliance certifications?

A: Yes. All three substitutes are RoHS3 compliant and REACH unaffected, matching the original part's regulatory status. Moisture sensitivity levels differ: TLC320AC02IFN is MSL 4 (72 Hours), while all substitutes are MSL 2 (1 Year).

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