Loading...
INTEGRATED CIRCUITS
DATA SHEET
TEA5711; TEA5711T
AM/FM stereo radio circuit
Product specification |
September 1994 |
Supersedes data of October 1992 |
|
File under Integrated Circuits, IC01 |
|
Philips Semiconductors
Philips Semiconductors |
Product specification |
|
|
AM/FM stereo radio circuit |
TEA5711; TEA5711T |
|
|
|
|
FEATURES
∙Wide supply voltage range: 1.8 or 2.1 to 12 V
∙Low current consumption: 15 mA at AM, 16 mA at FM
∙High selectivity with distributed IF gain
∙LED driver for stereo indication
∙High input sensitivity: 1.6 mV/m (AM), 2.0 μV (FM) for 26 dB S/N
∙Good strong signal behaviour: 10 V/m at AM, 500 mV at FM
∙Low output distortion: 0.8% at AM, 0.3% at FM
∙Signal level output
∙Soft mute
∙Signal dependent stereo
QUICK REFERENCE DATA
∙Designed for simple and reliable printed-circuit board layout
∙High impedance MOSFET input on AM.
APPLICATIONS
∙Portable AM/FM stereo radio
∙Mini/midi receiver sets
∙Personal headphone radio.
DESCRIPTION
The TEA5711 is a high performance Bimos IC for use in AM/FM stereo radios. All necessary functions are integrated: from AM and FM front-end to AM detector and FM stereo output stages.
SYMBOL |
PARAMETER |
CONDITIONS |
MIN. |
TYP. |
MAX. |
TYP. |
|
|
|
|
|
|
|
VP |
dynamic supply voltage |
|
1.8 |
− |
12 |
V |
VP |
static supply voltage |
|
2.1 |
− |
12 |
V |
IP |
supply current |
|
|
|
|
|
|
AM mode |
|
11.9 |
15.0 |
18.9 |
mA |
|
FM mode |
|
13.5 |
16.5 |
20.2 |
mA |
|
|
|
|
|
|
|
Tamb |
operating ambient temperature |
|
−15 |
− |
+60 |
°C |
AM performance |
|
|
|
|
|
|
|
|
|
|
|
|
|
Vin1 |
RF sensitivity |
|
40 |
55 |
70 |
μV |
V28 |
AF output voltage |
|
36 |
45 |
70 |
mV |
THD |
total harmonic distortion |
|
− |
0.8 |
2.0 |
% |
|
|
|
|
|
|
|
FM performance |
|
|
|
|
|
|
|
|
|
|
|
|
|
Vin3 |
RF sensitivity |
|
1.0 |
2.0 |
3.8 |
μV |
V28 |
AF output voltage |
|
50 |
61 |
72 |
mV |
THD |
total harmonic distortion |
|
− |
0.3 |
0.8 |
% |
|
|
|
|
|
|
|
MPX performance |
|
|
|
|
|
|
|
|
|
|
|
|
|
αcs |
channel separation |
|
26 |
30 |
− |
dB |
AMPX |
MPX voltage gain |
VAF-L/Vin9; S5 in position MONO |
−1.5 |
0 |
+1.0 |
dB |
THD |
total harmonic distortion |
|
− |
0.5 |
1.0 |
% |
|
|
|
|
|
|
|
ORDERING INFORMATION
TYPE NUMBER |
|
PACKAGE |
|
|
|
|
|
||
NAME |
DESCRIPTION |
VERSION |
||
|
||||
|
|
|
|
|
TEA5711 |
SDIP32 |
plastic shrink dual in-line package; 32 leads (400 mil) |
SOT232-1 |
|
|
|
|
|
|
TEA5711T |
SO32 |
plastic small outline package; 32 leads; body width 7.5 mm |
SOT287-1 |
|
|
|
|
|
September 1994 |
2 |
_ |
|
|
|
1994 September |
DIAGRAM BLOCK |
stereo AM/FM |
Semiconductors Philips |
|
|
circuit radio |
|
3 |
|
|
|
Fig.1 |
Block diagram. |
TEA5711T TEA5711; |
specification Product |
|
|
Philips Semiconductors |
|
|
Product specification |
|
|
|
|
AM/FM stereo radio circuit |
TEA5711; TEA5711T |
||
|
|
|
|
PINNING |
|
|
|
|
|
|
|
SYMBOL |
PIN |
DESCRIPTION |
|
|
|
|
|
n.c. |
1 |
not connected |
|
|
|
|
|
AF-LO |
2 |
left channel audio output (output impedance typ. 4.3 kΩ) |
|
AF-RO |
3 |
right channel audio output (output impedance typ. 4.3 kΩ) |
|
PILFIL |
4 |
pilot detector filter pin |
|
|
|
|
|
FM-DEM |
5 |
ceramic discriminator pin |
|
|
|
|
|
IFGND |
6 |
ground of IF, detector and MPX stages |
|
|
|
|
|
FM-IF2I |
7 |
second FM-IF input (input impedance typ. 330 Ω) |
|
VSTABB |
8 |
stabilized internal supply voltage (B) |
|
FM-IF1O |
9 |
first FM-IF output (output impedance typ. 330 Ω) |
|
AM-IF2I/O |
10 |
input/output to IFT; output: current source |
|
FM-IF1I |
11 |
first FM-IF input (input impedance typ. 330 Ω) |
|
VSTABA |
12 |
stabilized internal supply voltage (A) |
|
FM-MIXER |
13 |
output to ceramic IF filter (output impedance typ. 330 Ω) |
|
|
|
|
|
AM-MIXER |
14 |
open-collector output to IFT |
|
|
|
|
|
AM-IF1I |
15 |
input from IFT or ceramic filter (input impedance typ. 3 kΩ) |
|
FM-RFI |
16 |
FM-RF aerial input (input impedance typ. 50 Ω) |
|
RFGND |
17 |
FM-RF ground |
|
|
|
|
|
AM-RFI |
18 |
parallel tuned AM aerial circuit to ground (total input capacitance typ. 3 pF) |
|
RIPPLE |
19 |
ripple capacitor pin |
|
|
|
|
|
AM-AGC/FM-AFC |
20 |
AGC/AFC capacitor pin |
|
|
|
|
|
FM-RFO |
21 |
parallel tuned FM-RF circuit to ground |
|
SUBGND |
22 |
substrate and RF ground |
|
|
|
|
|
FM-OSC |
23 |
parallel tuned FM-oscillator circuit to ground |
|
|
|
|
|
AM-OSC |
24 |
parallel tuned AM-oscillator circuit to ground |
|
|
|
|
|
VP |
25 |
positive supply voltage |
|
IND |
26 |
signal level output |
|
|
|
|
|
VCO/AM-FM SWITCH |
27 |
VCO and switch terminal: open for AM; ground for FM |
|
|
|
|
|
AFO |
28 |
AM/FM AF output (output impedance typ. 5 kΩ) |
|
MPXI |
29 |
input for stereo decoder (input impedance typ. 180 kΩ) |
|
ST-LED |
30 |
stereo indicator |
|
|
|
|
|
LPF-M/S |
31 |
pin for loop-filter and mono/stereo switch |
|
|
|
|
|
MUTE |
32 |
mute pin |
|
|
|
|
|
September 1994 |
4 |
Philips Semiconductors |
|
|
Product specification |
||
|
|
|
|
|
|
AM/FM stereo radio circuit |
|
TEA5711; TEA5711T |
|||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Fig.2 Pin configuration; TEA5711. |
Fig.3 Pin configuration; TEA5711T. |
September 1994 |
5 |
Philips Semiconductors |
Product specification |
|
|
AM/FM stereo radio circuit |
TEA5711; TEA5711T |
|
|
FUNCTIONAL DESCRIPTION
The AM circuit incorporates a double balanced mixer, a one pin low-voltage oscillator (up to 30 MHz) a field-strength indicator output and is designed for distributed selectivity.
The AM input is designed to be connected to the top of a tuned circuit. AGC controls the IF amplification and for large signals it lowers the input impedance.
The first AM selectivity can be an IFT as well as an IFT combined with a ceramic filter; the second one is an IFT.
The FM circuit incorporates a tuned RF stage, a double balanced mixer, a one-pin oscillator, a field-strength indicator output and is designed for distributed IF ceramic filters. The FM quadrature detector uses a ceramic resonator.
The PLL stereo decoder incorporates a signal dependent stereo circuit, a soft-mute circuit and a stereo indicator LED driver.
Supply voltage behaviour
The TEA5711 incorporates internal stabilized power supplies. The maximum supply voltage is 12 V, the minimum voltage can go down temporarily to 1.8 V without any loss in performance.
Due to the capacitor at pin 19 (RIPPLE) the IC gives excellent performance, even when the actual supply voltage at pin 25 (VP) drops below the voltage at pin 19 (RIPPLE).
Figures 4, 5 and 6 show that Vstab, which is dominant for the overall IC performance, remains unaffected, even if VP
drops down to 1.8 V or less. In this typical example the
static or average VP is equal to 2.5 V. Dips in Vstab appear only when the peak-to-peak value of the AC-component of
VP > 2 V, i.e. when the dynamic value of VP drops down to 1.5 V for a short moment.
Fig.4 Supply voltage behaviour; VP as a function of time.
Fig.5 Supply voltage behaviour; Vripple as a function of time.
Fig.6 Supply voltage behaviour; Vstab as a function of time.
September 1994 |
6 |
Philips Semiconductors |
|
|
Product specification |
|||
|
|
|
|
|
|
|
AM/FM stereo radio circuit |
TEA5711; TEA5711T |
|||||
|
|
|
|
|
|
|
LIMITING VALUES |
|
|
|
|
|
|
In accordance with the Absolute Maximum Rating System (IEC 134). |
|
|
|
|
|
|
|
|
|
|
|
|
|
SYMBOL |
PARAMETER |
MIN. |
|
MAX. |
UNIT |
|
|
|
|
|
|
|
|
VP |
supply voltage |
0 |
|
12 |
|
V |
Tstg |
storage temperature |
−55 |
|
+150 |
|
°C |
Tamb |
operating ambient temperature |
−15 |
|
+60 |
|
°C |
Tj |
junction temperature |
−15 |
|
+150 |
|
°C |
THERMAL CHARACTERISTICS |
|
|
|
|
|
|
|
|
|
|
|
|
|
SYMBOL |
PARAMETER |
VALUE |
|
|
UNIT |
|
|
|
|
|
|
|
|
Rth j-a |
thermal resistance from junction to ambient in free air |
|
|
|
|
|
|
SDIP32 |
54 |
|
|
|
K/W |
|
SO32 |
68 |
|
|
|
K/W |
|
|
|
|
|
|
|
September 1994 |
7 |
Philips Semiconductors |
|
|
Product specification |
|
|
|
|
||
AM/FM stereo radio circuit |
|
TEA5711; TEA5711T |
||
|
|
|
|
|
CIRCUIT DESIGN DATA |
|
|
|
|
|
|
|
|
|
|
|
DC PIN VOLTAGE (V) |
||
PIN NO. |
PIN SYMBOL |
|
|
EQUIVALENT CIRCUIT |
|
|
|||
|
|
AM |
FM |
|
|
|
|
|
|
1 |
n.c. |
− |
− |
|
2 |
AF-LO |
0.65 |
|
|
|
|
|
|
|
|
|
|
|||
|
|
|
|
|
|||
|
|
|
|
|
|||
0.65 |
|
|
|
|
|
||
|
output |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
AF-RO |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
3 |
0.65 |
0.65 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|||
|
output |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4 |
PILFIL |
0.95 |
0.95 |
|
|
|
|
|
|
|
|
|
|
|
5 |
FM-DEM |
− |
1.0 |
|
|
|
|
|
|
|
|
|
|
||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
6 |
IFGND |
0 |
0 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
September 1994 |
|
|
8 |
|
|
|
|
|
Philips Semiconductors |
|
|
|
|
|
|
|
Product specification |
|||
|
|
|
|
|
|
|
|
|
|
|
|
AM/FM stereo radio circuit |
|
TEA5711; TEA5711T |
|||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
DC PIN VOLTAGE (V) |
|||||||||
PIN NO. |
PIN SYMBOL |
|
|
EQUIVALENT CIRCUIT |
|||||||
|
|
||||||||||
|
|
AM |
FM |
||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
7 |
FM-IF2I |
− |
0.73 |
|
|
|
|
|
|
|
|
|
|
|
|
||||
input |
|
|
|
|
|
|
|||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
8 |
VSTABB |
1.4 |
1.4 |
9 |
FM-IF1O |
− |
0.69 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
||||
|
|
|
|
|
|
|
|
|
|
|
|
||||
output |
|
|
|
|
|
|
|
|
|
|
|
|
|||
|
|
|
|
|
|
||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
AM-IF2I/O |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10 |
1.4 |
1.4 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|||
|
input/output |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
September 1994 |
9 |
Loading...