TDA7540N STMicroelectronics, TDA7540N Datasheet - Page 23

• Manufacturer Part Number: TDA7540N
• Description: IC TUNER AM/FM CAR RADIO 80-LQFP
• Manufacturer: STMicroelectronics

Specifications of TDA7540N

• Frequency: 10.7MHz
• Modulation Or Protocol: AM, FM
• Applications: Automotive Audio
• Current - Receiving: 12mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 7.7 V ~ 9 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Sensitivity: -
• Memory Size: -
• Data Rate - Maximum: -
• Lead Free Status / Rohs Status: Compliant

TDA7540N
Table 8.
1. Intermodulation Suppression
2. Traffic Radio (V.F.) Suppression
3. SCA ( Subsidiary Communications Authorization )
4. ACI (Adjacent Channel Interference )
5. All thresholds are measured inTestmode at the quality output. The thresholds are calculated by
Multipath detector
Quality detector
G
G
G
Symbol
measured with: 91% stereo signal; 9% pilot signal; fm = 10kHz or 13kHz.
measured with: 91% stereo signal; 9% pilot signal; fm=1kHz; 5% sub carrier (f=57kHz, fm=23Hz AM, m=60%)
measured with: 81% mono signal; 9% pilot signal; fm=1kHz; 10%SCA – sub carrier ( f
measured with: 90% mono signal; 9% pilot signal; fm=1kHz; 1% spurious signal ( f
V
V
G
G
I
I
I
RECTMP
RECTMP
AMdelay
DISMP
f
CHMP
CHMP
NBTH
PEAK
CMP
BPMP
BPMP
A
A
a
a
a2 = V
a3 = V
a57(V,W,F) = V
a67 = V
a114 = V
a190 = V
is adjusted by applying a 150kHz sinewave at MPXIN.
- V
PEAK
O
O
Stereodecoder electrical characteristics (continued)
(T
V
circuit, unless otherwise specified).
(signal,@1KHz) / V
(signal,@1KHz) / V
O
AM delay filter attenuation
Center frequency of multipath-
bandpass
Min. band pass gain
Max. band pass gain
Min. rectifier gain
Max. rectifier gain
Rectifier charge current
Rectifier charge current
Rectifier discharge current
Min. MP influence factor
Max. MP influence factor
Min. noise influence factor
Max. noise influence factor
O
O
(signal,@1KHz) / V
MPX
amb
(signal,@1KHz) / V
(signal,@1KHz) / V
= 25°C, V
= 500mV
O
(signal,@1KHz) / V
Parameter
O
O
rms
CC1
(spurious, @1KHz) ; fs = (2x10KHz) - 19KHz
(spurious, @1KHz) ; fs = (3x13KHz) - 38KHz
O
O
O
(spurious, @9KHz) ; fs = (2x38KHz) - 67KHz
(spurious, @4KHz) ; fs = 110KHz - (3x38KHz)
(spurious, @4KHz) ; fs = 186KHz - (5x38KHz)
mono, f = 1kHz, deemphasis = 50µs, f
= V
O
CC2
(spurious, @1KHz+/-23KHz)
= V
MPBPG
QNG
f = 2.2kHz
stereo decoder locked on pilot
tone
MPBPG
MPRG
MPRG
MPCC = 0
MPCC = 1
QDC
QDC
QNG
CC3
= V
Test conditions
CCST
= V
CCVCO
= V
S
CCMIX1
Xtal
= 110kHz or 186kHz, unmodulated).
S
Min.
= 67kHz, unmodulated ).
= 10.25MHz, in application
4.5
0.5
0.2
0.3
0.5
0.9
10
-1
4
= V
Electrical specifications
CCMIX2
Typ.
1.05
2.0
7.6
0.8
0.4
0.6
0.6
19
12
15
6
0
6
= V
Max.
9.5
1.2
0.6
0.8
0.7
1.2
14
8
1
CCIF1
= 8.5V,
Unit
kHz
mA
dB
dB
dB
dB
dB
μA
μA
dB
dB
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