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PDF TA2131FNG Data sheet ( Hoja de datos )
| Número de pieza | TA2131FNG | |
| Descripción | Low Current Consumption Headphone Amplifier | |
| Fabricantes | Toshiba Semiconductor | |
| Logotipo |  |
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TOSHIBA Bipolar Linear IC Silicon Monolithic
TA2131FNG
TA2131FNG
Low Current Consumption Headphone Amplifier for Portable MD Player (With Bass Boost
Function)
www.datasheet4u.com
The TA2131FNG is a low current consumption headphone
amplifier developed for portable digital audio. It is particularly
well suited to portable MD players that are driven by a single dry
cell. It also features a built-in bass boost function with AGC, and
is capable of bass amplification of DAC output and analog signals
such as tuner.
Features
• Low current consumption: ICCQ (VCC1) = 0.55 mA (typ.)
ICCQ (VCC2) = 0.20 mA (typ.)
• Output power: Po = 8 mW (typ.)
(VCC1 = 2.8 V, VCC2 = 1.2 V, f = 1 kHz, THD = 10%, RL = 16 Ω)
• Low noise: Vno = −102dBV (typ.)
• Built-in low-pass boost (with AGC)
• I/O pin for beep sound
• Outstanding ripple rejection ratio
• Built-in power mute
• Built-in power ON/OFF switch
• Operating supply voltage range (Ta = 25°C): VCC1 = 1.8~4.5 V
VCC2 = 0.9~4.5 V
Weight: 0.14 g (typ.)
1 2006-04-19
1 page  
Terminal No.
Terminal
Explanation
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16 PW SW
Power ON/OFF
switch
“H” level:
IC operation
“L” level: IC OFF
Refer to function
explanation 5
Internal Circuit
VCC1
14
47 kΩ
16
TA2131FNG
Terminal
Voltage
(V)
⎯
17 MT SW
Mute switch
“L” level: mute reset
“H” level: mute ON
Refer to function
explanation 5
VCC1
14
47 kΩ
17
18 BST SW
Bass boost ON/OFF
switch
“H” level/OPEN:
BST ON
“L” level: BST OFF
Refer to function
explanation 5
20 GND
GND of input stage
in power amplifier
21 Vref IN
Reference voltage
circuit filter terminal
14
20 kΩ
18
⎯
14
⎯
⎯
0
0.61
22 Vref
Reference voltage
circuit
21
10 kΩ
22
0.61
5 2006-04-19
5 Page 
Absolute Maximum Ratings
TA2131FNG
Characteristic
Symbol
Rating
Supply voltage
Output current
Power dissipation
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Operating temperature
Storage temperature
VCC
Io (peak)
PD (Note)
Topr
Tstg
4.5
100
500
−25~75
−55~150
Note: Derated above Ta = 25°C in the proportion of 4 mW/°C.
Unit
V
mA
mW
°C
°C
Electrical Characteristics (Unless specified otherwise, VCC1 = 2.8 V, VCC2 = 1.2 V,
Rg = 600 Ω, RL = 16 Ω, f = 1 kHz, Ta = 25°C)
Characteristic
Quiescent supply current
Power supply current during
drive
Gain
Channel balance
Output power
Total harmonic distortion
Output noise voltage
Crosstalk
Ripple rejection ratio
Mute attenuation
Beep sound output
voltage
Boost gain
Symbol
ICC1
ICC2
ICC3
ICC4
ICC5
ICC6
ICC7
ICC8
GV
CB
Pomax
THD
Vno
CT
RR1
RR2
ATT
VBEEP
BST1
BST2
BST3
Test condition
IC OFF (VCC1), SW1: b, SW2: b
IC OFF (VCC2), SW1: b, SW2: b
MUTE ON (VCC1), SW1: a, SW2: b
MUTE ON (VCC2), SW1: a, SW2: b
No signal (VCC1), SW1: a, SW2: a
No signal (VCC2), SW1: a, SW2: a
Po = 0.5 mW + 0.5 mW output (VCC1)
Po = 0.5 mW + 0.5 mW output (VCC2)
Vo = −22dBV
Vo = −22dBV
THD = 10%
Po = 1 mW
Rg = 600 Ω, Filter: IHF-A, SW4: b
Vo = −22dBV
fr = 100 Hz, Vr = −20dBV
inflow to VCC2
fr = 100 Hz, Vr = −20dBV
inflow to VCC1
Vo = −12dBV, SW2: a → b
V Beep IN = 2 Vp-o, SW2: b
Vo = −20dBV, f = 100 Hz,
SW3: ON → OPEN
Vo = −30dBV, f = 100 Hz,
SW3: ON → OPEN
Vo = −50dBV, f = 100 Hz,
SW3: ON → OPEN
Min
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
10
−1.5
5
⎯
⎯
−42
−71
−54
−90
−53
Typ. Max
0.1
0.1
0.35
5
0.55
0.20
0.6
5.3
12
0
8
0.1
−102
−48
5
5
0.50
10
0.75
0.40
⎯
⎯
14
1.5
⎯
0.3
−96
⎯
−77 ⎯
−64
−100
−48
⎯
⎯
−43
Unit
µA
mA
µA
mA
dB
mW
%
dBV
dB
dBV
147
10 13 16 dB
13.5 16.5 19.5
11 2006-04-19
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet TA2131FNG.PDF ] | |
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