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參數(shù)資料
| 型號： | TDA8559 |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 音頻放大器 |
| 英文描述： | Low-voltage stereo headphone amplifier |
| 中文描述： | 低電壓立體聲耳機放大器 |
| 文件頁數(shù)： | 4/32頁 |
| 文件大?。?/td> | 264K |
| 代理商： | TDA8559 |
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1997 Jun 27
4
Philips Semiconductors
Product specification
Low-voltage stereo headphone amplifier
TDA8559
PINNING
SYMBOL
PIN
DESCRIPTION
STANDBY
+IN1
IN1
SVRR
+IN2
IN2
MUTE
MODE
n.c.
n.c.
OUT2
BUFFER
GND
OUT1
V
P2
V
P1
1
2
3
4
5
6
7
8
9
standby select
non-inverting input 1
inverting input 1
supply voltage ripple rejection
non-inverting input 2
inverting input 2
mute select
input mode select
not connected
not connected
output 2
buffer output (0.5V
P
)
ground
output 1
high supply voltage
low supply voltage
10
11
12
13
14
15
16
Fig.2 Pin configuration.
handbook, halfpage
TDA8559
MGD114
1
2
3
4
5
6
7
8
STANDBY
+
IN1
IN1
SVRR
+
IN2
IN2
MUTE
MODE
VP2
VP1
OUT1
GND
BUFFER
OUT2
n.c.
n.c.
16
15
14
13
12
11
10
9
FUNCTIONAL DESCRIPTION
The TDA8559 contains two amplifiers with differential
inputs, a 0.5V
P
output buffer and a high supply voltage
stabilizer. Each amplifier consists of a voltage-to-current
converter (V/I), an output amplifier and a common dynamic
quiescent current controller. The gain of each amplifier is
internally fixed at 26 dB (= 20
×
). The 0.5V
P
output can be
used as a replacement for the single-ended capacitors.
The two amplifiers can also be used as a mono amplifier in
a BTL configuration thereby resulting in more output
power.
With three mode select pins, the device can be switched
into the following modes:
1.
Standby mode (I
P
< 10
μ
A)
2.
Mute mode
3.
Operation mode, with two input selections (the input
source is directly connected or connected via coupling
capacitors at the input).
The ripple rejection in the stereo application with a
single-ended capacitor can be improved by connecting a
capacitor between the 0.5V
P
capacitor pin and ground.
The device is fully protected against short-circuiting of the
output pins to ground, to the low supply voltage pin and
across the load.
V/I converters
The V/I converters have a transconductance of 400
μ
S.
The inputs are completely symmetrical and the two
amplifiers can be used in opposite phase. The mute mode
causes the V/I converters to block the input signal.
The input mode pin selects two applications in which the
V/I converters can be used.
The first application (input mode pin floating) is used with
a supply voltage below 6 V. The input DC level is at ground
level (the unused input pin connected to ground) and no
input coupling capacitors are necessary. The maximum
converter output current is sufficient to obtain an output
swing of 3 V (peak).
In the second application with a supply voltage greater
than 6 V (input mode pin HIGH), the input mode pin is
connected to V
P
. In this configuration (input DC
level = 0.5V
P
+ 0.6 V) the input source must be coupled
with a capacitor and the two unused input pins must be
connected via a capacitor to ground, to improve noise
performance. This application has a higher quiescent
current, because the maximum output current of the V/I
converter is higher to obtain an output voltage swing of
9 V (peak).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA8559T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-voltage stereo headphone amplifier |
| TDA8559T/N1 | 制造商:NXP Semiconductors 功能描述:AMP STEREO HEADPHONE SMD SO-16 |
| TDA8559T/N1,512 | 功能描述:音頻放大器 HEADPHONE AMP LV RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA8559T/N1,518 | 功能描述:音頻放大器 LOW VOLTAGE STEREO HEADPHN AMP RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA8559TD | 功能描述:音頻放大器 HEADPHONE AMP LV RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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