Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

TDA1597 Datasheet(PDF) 5 Page - NXP Semiconductors

Part No. TDA1597
Description  IF amplifier/demodulator for FM radio receivers
Download  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA1597 Datasheet(HTML) 5 Page - NXP Semiconductors

  TDA1597 Datasheet HTML 1Page - NXP Semiconductors TDA1597 Datasheet HTML 2Page - NXP Semiconductors TDA1597 Datasheet HTML 3Page - NXP Semiconductors TDA1597 Datasheet HTML 4Page - NXP Semiconductors TDA1597 Datasheet HTML 5Page - NXP Semiconductors TDA1597 Datasheet HTML 6Page - NXP Semiconductors TDA1597 Datasheet HTML 7Page - NXP Semiconductors TDA1597 Datasheet HTML 8Page - NXP Semiconductors TDA1597 Datasheet HTML 9Page - NXP Semiconductors Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 24 page
background image
1997 Feb 27
5
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
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 gives a very
stable IF performance. The amplifier gain is virtually
independent of changes in temperature.
The FM demodulator is fully balanced and contains 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
for 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 connected to 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 in
the FM-MUTE-ON condition (mode switch).
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. Pins 14 and 15 may be
tied together if only one tuning-stop output is required.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
Note
1. Equivalent to discharging a 100 pF capacitor through a 1.5 k
Ω series resistor.
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
VP
supply voltage
−0.3
+13
V
Vn
voltage at pins 2, 4, 5, 6, 10, 11 and 16
−0.3
+10
V
voltage at pins 3, 7, 8, 14, 15, 18,
19 and 20
−0.3
VP
V
V13
voltage on pin 13
6V
I14, 15
current at pins 14 and 15
2mA
Ptot
total power dissipation
360
mW
Tstg
storage temperature
−55
+150
°C
Tamb
operating ambient temperature
−40
+85
°C
Ves
electrostatic handling
all pins except pins 5 and 7
note 1
−2000
+2000
V
pin 5
note 1
−2000
+800
V
pin 7
note 1
−2000
+1000
V


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24 


Datasheet Download

Go To PDF Page

Related Electronics Part Number

Part No.DescriptionHtml ViewManufacturer
TDA1593 IF amplifier/demodulator for FM car radio receivers 1  2  3  4  5  More NXP Semiconductors
TDA1596 IF amplifier/demodulator for FM radio receivers 1  2  3  4  5  More NXP Semiconductors
TDA1596T IF amplifier/demodulator for FM radio receivers 1  2  3  4  5  More NXP Semiconductors
TDA1599 IF amplifier/demodulator for FM radio receivers 1  2  3  4  5  More NXP Semiconductors
TDA1701 INTEGRATED CIRCUITS FOR TV AND RADIO RECEIVERS 1  List of Unclassifed Manufacturers
TEA6850 IF filter / amplifier / demodulator for FM radio receivers 1  2  3  4  5  More NXP Semiconductors
TDA1574 Integrated FM tuner for radio receivers 1  2  3  4  5  More NXP Semiconductors
TDA1574T Integrated FM tuner for radio receivers 1  2  3  4  5  More NXP Semiconductors
LC7265 Received Frequency Display for Radio Receivers 1  2  3  4  5  More Sanyo Semicon Device
NTE1170 Integrated Circuit Dual Preamp for Car Radio 1  2  NTE Electronics

Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn