TEA6848H/V1,557 NXP Semiconductors, TEA6848H/V1,557 Datasheet - Page 11

• Manufacturer Part Number: TEA6848H/V1,557
• Description: IC CAR RADIO TUNER 80-LQFP
• Manufacturer: NXP Semiconductors

Specifications of TEA6848H/V1,557

• Modulation Or Protocol: AM, FM, WB
• Applications: AM/FM Radio Receiver
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 5V, 8.5V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Frequency: -
• Sensitivity: -
• Memory Size: -
• Data Rate - Maximum: -
• Current - Receiving: -
• Lead Free Status / Rohs Status: Compliant
• Other names: 935267599557; TEA6848H/V1; TEA6848H/V1

Philips Semiconductors
7.6
The 4-bit filter gain alignment reduces the change in
IF filter gain spread when the bandwidth is changed in
dynamic mode from 155 kHz (maximum) to 25 kHz
(minimum).
A frequency has to be chosen in the middle of
European/US FM band, Japan band or OIRT band (for
East Europe) and the IC has to be set into dynamic
bandwidth mode (IF2 bandwidth is 155 kHz).
Setting and clearing the FMBW bit continuously allows the
adjustment of the gain alignment to minimum change in
AM/FM DC level.
8
In accordance with the Absolute Maximum Rating System (IEC 60134).
Notes
1. To avoid damage and wrong operation it is necessary to keep all 8.5 V supply voltages at a higher level than any 5 V
2. Machine model (R = 0 , C = 200 pF).
3. Human body model (R = 1.5 k , C = 100 pF).
9
2004 Nov 12
V
V
V
V
V
V
V
T
T
V
R
R
V
stg
amb
DDA1
DDA2
DDA3
DDA4
DDA5
DDA6
DDD
es
th(j-a)
th(j-c)
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
SYMBOL
SYMBOL
DD8.5-DD5
supply voltage. This is also necessary during power-on and power-down sequences. Precautions have to be
provided in such a way that interference cannot pull down the 8.5 V supply below the 5 V supply.
LIMITING VALUES
THERMAL CHARACTERISTICS
IF2 filter gain alignment
analog supply voltage 1 for FM IF amplifier
analog supply voltage 2 for FM and AM RF
analog supply voltage 3 for tuning PLL
analog supply voltage 4 for voltage controlled
oscillator
analog supply voltage 5 for on-chip power supply
analog supply voltage 6 for on-chip power supply
digital supply voltage
difference between any 8.5 V supply voltage and
any 5 V supply voltage
storage temperature
ambient temperature
electrostatic handling voltage
thermal resistance from junction to ambient
thermal resistance from junction to case
PARAMETER
PARAMETER
11
7.7
A very strong undesired neighbouring signal causes offset
in the demodulator in case of weak desired input signal.
The frequency offset detector reduces the bandwidth of
the IF2 filter when the detected offset in the demodulator
is too large.
There are four bits available for frequency offset detector
alignment. Every band has to be aligned separately.
Tuning has to be set to middle of the band, input signal
unmodulated, bit IFBW = 1 (alignment voltage will be
given to pin IFBWFLAG). The DC voltage at
pin IFBWFLAG has to be aligned to the minimum value.
Frequency offset detector/alignment
note 1
note 2
note 3
in free air
CONDITIONS
CONDITIONS
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
55
40
200
2000
MIN.
VALUE
54
9
+10
+10
+10
+10
+6.5
+10
+6.5
+150
+85
+200
+2000
Product specification
MAX.
TEA6848H
UNIT
K/W
K/W
V
V
V
V
V
V
V
V
V
V
C
C
UNIT