TEA6848H/V1 NXP Semiconductors, TEA6848H/V1 Datasheet - Page 31

• Manufacturer Part Number: TEA6848H/V1
• Description: Tuners NICE PACS
• Manufacturer: NXP Semiconductors

Specifications of TEA6848H/V1

• Bus Type: I2C
• Maximum Agc: 89 dB
• Maximum Frequency: 9.99 MHz, 108 MHz
• Minimum Frequency: 5.73 MHz, 65 MHz
• Modulation Technique: AM, FM
• Mounting Style: SMD/SMT
• Package / Case: LQFP-80
• Function: Radio
• Noise Figure: 16 dB, 4.5 dB
• Operating Supply Voltage: 8.5 V
• Supply Voltage (min): 8 V
• Supply Voltage (max): 9 V
• Minimum Operating Temperature: - 40 C
• Maximum Operating Temperature: + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: TEA6848H/V1,557

Philips Semiconductors
12 I
12.1
Information about the I
“The I
9398 393 40011).
The standard I
following definitions.
IC addresses:
Structure of the I
increment.
Subaddresses are not used.
A second I
pin FREF via a 68 k resistor to GND.
12.1.1
Data sequence: address, byte 0, byte 1, byte 2, byte 3,
byte 4, byte 5, byte 6, and byte 7. The data transfer has to
be in this order. The LSB = 0 indicates a WRITE operation
to the TEA6848H.
Bit 7 of each byte is considered the MSB and has to be
transferred as the first bit of the byte.
The data becomes valid at the output of the internal
latches with the acknowledge of each byte. A STOP
condition after any byte can shorten transmission times.
When writing to the transceiver by using the STOP
condition before completion of the whole transfer:
2004 Nov 12
1st IC address C2H: 1100001 R/W
2nd IC address C0H: 1100000 R/W.
The remaining bytes will contain the old information
If the transfer of a byte is not completed, this byte is lost
and the previous information is available.
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
2
C-BUS PROTOCOL
2
C-bus and how to use it” (order number
I
2
C-bus specification
D
2
ATA TRANSFER
C-bus address can be selected by connecting
2
C-bus specification is expanded by the
2
C-bus logic: slave transceiver with auto
2
C-bus can be found in the brochure
31
12.1.2
When the IC is used together with the TEA688x or
TEF689x and both SCL and SDA lines are connected via
the I
resistors of the tuner IC should be connected to the digital
supply voltage of the TEA688x or TEF689x. Otherwise an
I
supply when the I
or TEF689x is enabled for data transfer to the tuner IC.
12.1.3
For new frequency setting, in both AM and FM mode, the
programmable divider is enabled by setting bit MUTE = 1.
To select an FM frequency, two I
necessary:
12.1.4
No default settings at power-on reset. One I
transmission is required to program the IC.
12.1.5
Table 1 Timing requirements of I
2
Switching from
FM to AM
Switching from
AM to FM
Start-up in FM
mode
Switching to
dynamic mode
C-bus pull-down can occur switching off the tuner IC
First: bit MUTE = 1
Second: bit MUTE = 0.
FUNCTION
2
C-bus to the TEA688x or TEF689x, the pull-up
I
F
D
T
2
REQUENCY SETTING
IMING REQUIREMENTS
C-
EFAULT SETTINGS
BUS PULL
2
400 ms (10 F at pin CAGC)
100 ms (10 F at pin CAGC; wideband
position has to be set for at least
100 ms to activate speed-up circuitry)
wideband position has to be set for at
least 100 ms to activate speed-up
circuitry
500 s (18 nF at pin TACD; wideband
position has to be set for at least
500 s to activate clamping circuitry at
pin TACD)
C-bus buffer interface of the TEA688x
-
UP RESISTORS
2
C-bus transmissions are
TIMING
2
C-bus software
Product specification
TEA6848H
2
C-bus