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TDA1308T
Class-AB stereo headphone driver
1. General descriptionThe TDA1308 is an integrated class-AB stereo headphone driver contained in an SO8 or
a TSSOP8 plastic package. The device is fabricated in a 1 μm Complementary Metal
Oxide Semiconductor (CMOS) process and has been primarily developed for portable
digital audio applications.
2. Features and benefits Wide temperature range No switch ON/OFF clicks Excellent power supply ripple rejection Low power consumption Short-circuit resistant High performance High signal-to-noise ratio High slew rate Low distortion Large output voltage swing
3. Quick reference data
TDA1308
Class-AB stereo headphone driver
Rev. 5 — 14 March 2011 Product data sheet
Table 1. Quick reference dataVDD =5V; VSS =0V; Tamb =25 °C; fi=1 kHz; RL =32 Ω; unless otherwise specified.
VDD supply voltage single supply 3.0 5.0 7.0 V
dual supply 1.5 2.5 3.5 V
VSS negative supply
voltage
dual supply −1.5 −2.5 −3.5 V
IDD supply current no load - 3 5 mA
Ptot total power
dissipation
no load - 15 25 mW output power maximum; THD+N < 0.1% [1] -40 80 mW
THD+N total harmonic
distortion-plus-noise
[1] -0.03 0.06 %
[1]- −70 −65 dB =5kΩ - −101- dB
S/N signal-to-noise ratio 100 110 - dB
NXP Semiconductors TDA1308
Class-AB stereo headphone driver[1] VDD =5V; Vo(p-p)=3.5 V (at 0 dB).
4. Ordering information
5. Block diagramαcs channel separation - 70 - dB =5kΩ [1]- 105 - dB
PSRR power supply ripple
rejection =100 Hz;
Vripple(p-p)= 100 mV
-90 - dB
Tamb ambient temperature −40 - +85 °C
Table 1. Quick reference data …continuedVDD =5V; VSS =0V; Tamb =25 °C; fi=1 kHz; RL =32 Ω; unless otherwise specified.
Table 2. Ordering informationTDA1308T SO8 plastic small outline package; 8 leads; body width
3.9 mm
SOT96-1
TDA1308TT TSSOP8 plastic thin shrink small outline package; 8 leads;
body width 3 mm
SOT505-1
NXP Semiconductors TDA1308
Class-AB stereo headphone driver
6. Pinning information
6.1 Pinning
6.2 Pin description
7. Internal circuitry
Table 3. Pin descriptionOUTA 1 outputA
INA− 2 inverting inputA
INA+ 3 non-inverting inputA
VSS 4 negative supply
INB+ 5 non-inverting inputB
INB− 6 inverting inputB
OUTB 7 outputB
VDD 8 positive supply
NXP Semiconductors TDA1308
Class-AB stereo headphone driver
8. Limiting values[1] Human body model (HBM): C= 100 pF; R= 1500 Ω; 3 pulses positive plus 3 pulses negative.
[2] Machine model (MM): C= 200 pF; L=0.5 mH; R=0 Ω; 3 pulses positive plus 3 pulses negative.
9. Thermal characteristics
Table 4. Limiting valuesIn accordance with the Absolute Maximum Rating System (IEC 60134).
VDD supply voltage 0 8.0 V
tsc short-circuit duration time output; Tamb =25 °C;
Ptot =1W - s
Tstg storage temperature −65 +150 °C
Tamb ambient temperature −40 +85 °C
VESD electrostatic discharge
voltage
HBM [1] −2+2 kV [2] −200 +200 V
Table 5. Thermal characteristicsRth(j-a) thermal resistance from junction
to ambient
SO8 210 K/W
TSSOP8 220 K/W
NXP Semiconductors TDA1308
Class-AB stereo headphone driver
10. Characteristics[1] Values are proportional to VDD; THD+N < 0.1%.
[2] VDD =5V; Vo(p-p)=3.5 V (at 0 dB).
Table 6. CharacteristicsVDD =5V; VSS =0V; Tamb =25 °C; fi=1 kHz; RL =32 Ω; unless otherwise specified.
SuppliesVDD supply voltage single supply 3.0 5.0 7.0 V
dual supply 1.5 2.5 3.5 V
VSS negative supply voltage dual supply −1.5 −2.5 −3.5 V
IDD supply current no load - 3 5 mA
Ptot total power dissipation no load - 15 25 mW
Static characteristics|VI(offset)| input offset voltage - 10 - mV
IIB input bias current - 10 - pA
Vcm common-mode voltage 0 - 3.5 pA
Gv(ol) open-loop voltage gain RL =5kΩ -70 - dB output current maximum - 60 - mA output resistance THD+N < 0.1% - 0.25 - Ω
ΔVO output voltage variation [1] 0.75 - 4.25 V =16Ω [1] 1.5- 3.5V =5kΩ [1] 0.1- 4.9V
αcs channel separation - 70 - dB =5kΩ [1] -105 -dB
PSRR power supply ripple rejectionfi =100 Hz; Vripple(p-p)= 100 mV - 90 - dB load capacitance - - 200 pF
Dynamic characteristicsTHD+N total harmonic
distortion-plus-noise
[2]- 0.03 0.06 %
[2]- −70 −65 dB =5kΩ [2]- −101 - dB =5kΩ [2] -0.0009 - %
S/N signal-to-noise ratio 100 110 - dB unity gain frequency open-loop; RL =5kΩ -5.5 -MHz output power maximum; THD+N < 0.1% - 40 80 mW input capacitance - 3 - pF slew rate unity gain inverting - 5 - V/μs bandwidth unity gain inverting - 20 - kHz
NXP Semiconductors TDA1308
Class-AB stereo headphone driver
11. Application information
12. Test information
NXP Semiconductors TDA1308
Class-AB stereo headphone driverNXP Semiconductors TDA1308
Class-AB stereo headphone driverNXP Semiconductors TDA1308
Class-AB stereo headphone driver
13. Package outline
