TDA7541 STMicroelectronics, TDA7541 Datasheet - Page 23

• Manufacturer Part Number: TDA7541
• Description: IC TUNER AM/FM CAR RADIO 64-LQFP
• Manufacturer: STMicroelectronics

Specifications of TDA7541

• Modulation Or Protocol: AM, FM
• Applications: Automotive Audio
• Current - Receiving: 48mA
• 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: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Frequency: -
• Sensitivity: -
• Memory Size: -
• Data Rate - Maximum: -
• Lead Free Status / Rohs Status: Compliant

TDA7541
Table 8.
1. Intermodulation suppression
measured with: 91 % stereo signal; 9 % pilot signal; fm = 10 kHz or 13 kHz.
2. Traffic radio (V.F.) suppression
measured with: 91% stereo signal; 9% pilot signal; fm=1 kHz; 5% sub carrier (f=57 kHz, fm=23 Hz AM, m=60 %)
3. SCA (subsidiary communications authorization)
measured with: 81 % mono signal; 9 % pilot signal; fm=1 kHz; 10 % SCA - sub carrier (f
4. ACI (adjacent channel interference)
measured with: 90 % mono signal; 9 % pilot signal; fm=1 kHz; 1% spurious signal (f
5. All thresholds are measured in test mode at the quality output. The thresholds are calculated by V
38. Multipath detector
39. Quality detector
Item
38.1
38.2
38.3
38.4
38.5
38.6
38.7
39.1
39.2
39.3
39.4
be adjusted by applying a 150 kHz sinewave at MPXIN.
G
G
Symbol
I
RECTMP
RECTMP
I
I
DISMP
CHMP
CHMP
G
G
a
a
b
b
MP
MP
Stereo decoder section (continued)
Min. multipath gain
Max. multipath gain
Min. rectifier gain
Max. rectifier gain
Rectifier charge current
Rectifier charge current
Rectifier discharge current -
Min. quality detector
coefficient
Max. quality detector
coefficient
Min. quality noise gain
Max. quality noise gain
Parameter
a190
a114
a67
a2
a3
=
=
=
=
=
--------------------------------------------------------------- ƒs
V
--------------------------------------------------------------- ƒs
V
a57 V W F ,
--------------------------------------------------------------- ƒs
V
--------------------------------------------------------------- ƒs
V
--------------------------------------------------------------- ƒs
V
V
V
o
o
V
o
V
V
o
o
(
(
(
o
o
o
(
(
spurious @1 kHz
spurious @1 kHz
o
o
spurious @4 kHz
(
(
(
spurious @9 kHz
spurious @4 kHz
(
(
(
signal @1 kHz
signal @1 kHz
signal @1 kHz
signal @1 kHz
signal @1 kHz
,
)
,
,
,
=
,
,
MPG = 00
MPG = 11
MPRG = 01
MPRG = 11
MPCC = 0
MPCC = 1
QDC
QDC
QNG
QNG
,
,
Doc ID 13686 Rev 4
,
,
,
----------------------------------------------------------------------------------------- -
V
o
(
spurious @1 kHz
)
)
V
)
)
)
)
)
o
)
Test conditions
)
)
;
;
;
(
;
;
signal @1 kHz
=
=
=
=
=
,
(
(
(
(
(
(
(
Electrical specifications and characteristics
(
110 kHz
2
3
186 kHz
,
2 38 kHz
×
×
×
10 kHz
13 kHz
)
±
–
–
23 kHz
)
(
(
) 19 kHz
) 38 kHz
S
2
) 67 kHz
5
–
–
= 110 kHz or 186 kHz, unmodulated)
–
×
×
38 kHz
S
38 kHz
= 67 kHz, unmodulated)
)
)
Min.
)
)
0.5
0.2
0.5
0.5
0.9
)
11
13
-1
)
5
5
5
)
NBTH
Typ.
1.05
7.6
0.8
0.4
0.6
12
15
6
0
1
6
- V
PEAK
Max.
1.1
0.7
0.7
1.2
13
17
. V
7
1
9
7
PEAK
Unit
can
mA
dB
dB
dB
dB
μA
μA
dB
dB
23/75
-
-