- 您现在的位置：买卖IC网 > PDF目录98189 > TDA1593T-T (NXP SEMICONDUCTORS) FM, AUDIO DEMODULATOR, PDSO20 PDF资料下载
参数资料
| 型号： | TDA1593T-T |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 接收器 |
| 英文描述： | FM, AUDIO DEMODULATOR, PDSO20 |
| 封装： | 7.50 MM, PLASTIC, MS-013AC, SOT-163-1, SOP-20 |
| 文件页数： | 16/20页 |
| 文件大小： | 107K |
| 代理商： | TDA1593T-T |
1996 Oct 10
5
Philips Semiconductors
Product specication
IF amplier/demodulator for
FM car radio receivers
TDA1593
FUNCTIONAL DESCRIPTION
The limiter amplifier has five stages of IF amplification
using balanced differential limiter amplifiers with emitter
follower coupling.
Decoupling of the stages from the supply voltage line and
an internal high-ohmic DC feedback loop give a very stable
IF performance. The amplifier gain is virtually independent
of changes in temperature.
The FM demodulator is fully balanced and compromises
two cross-coupled differential amplifiers.
The quadrature detection of the FM signal is performed by
direct feeding of one differential amplifier from the limiter
amplifier output, and the other via an external 90 degrees
phase shifting network. The demodulator has a good
stability and a small zero-cross-over shift. The bandwidth
of the demodulator output is restricted by an internal
low-pass filter to approximately 1 MHz. Non-linearities,
which are introduced by demodulation, are compensated
by the THD compensation circuit. For this reason, the
demodulator resonance circuit (between pins 10 and 11)
must have a loaded Q-factor of 19. Consequently, there is
no need for the demodulator tuned circuit to be adjusted
for minimum distortion. Adjustment criterion is a
symmetrical stop pulse. The control voltage for the mute
attenuator (pin 16) is derived from the values of the level
detector and the detuning detector output signals.
The mute attenuator has a fast attack and a slow decay
determined by the capacitor on pin 16. The AF signal is fed
via the mute attenuator to the output (pin 4). A weighted
control voltage (pin 6) is obtained from the mute attenuator
control voltage via a buffer amplifier that introduces an
additional voltage shift and gain.
The level detector generates a voltage output signal
proportional to the amplitude of the input signal.
The unweighted level detector output signal is available.
The open-collector tuning stop output voltages STOP-0
and STOP-1 (pins 15 and 14) are derived from the
detuning and the input signal level. The pins 14 and 15
may be tied together, if only one tuning-stop output is
required.
TDA1593
MBE513
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
VP
LVA
ULV
Vref
VoAF
WLV
DDV
DEMI1
DEMI2
TSW
ST0
ST1
MUTE
LFB1
GND
ViIF
LFB2
n.c.
Fig.2 Pin configuration for DIP-version.
TDA1593T
MBE514
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VP
LVA
ULV
Vref
VoAF
WLV
DDV
n.c.
DEMI1
DEMI2
TSW
ST0
ST1
MUTE
LFB1
GND
ViIF
LFB2
n.c.
Fig.3 Pin configuration for SO-version.
相关PDF资料 |
PDF描述 |
|---|---|
| TDA1596N | FM, AUDIO DEMODULATOR, PDIP18 |
| TDA1597/V1,112 | FM, AUDIO DEMODULATOR, PDIP18 |
| TDA1597T/V1,118 | FM, AUDIO DEMODULATOR, PDSO20 |
| TDA16822 | 2.5 A SWITCHING REGULATOR, 107 kHz SWITCHING FREQ-MAX, PDIP8 |
| TDA1905 | 5.5 W, 1 CHANNEL, AUDIO AMPLIFIER, PDIP16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA1596 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:IF amplifier/demodulator for FM radio receivers |
| TDA1596T | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:IF amplifier/demodulator for FM radio receivers |
| TDA1596T/V3,512 | 功能描述:调谐器 IF AMP/DEM RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度: |
| TDA1596T/V3,518 | 功能描述:调谐器 FM IF CIRCUIT RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度: |
| TDA1596T/V3-T | 功能描述:调谐器 FM IF CIRCUIT RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度: |
发布紧急采购，3分钟左右您将得到回复。