TEA6845H/V2,557 NXP Semiconductors, TEA6845H/V2,557 Datasheet - Page 28

• Manufacturer Part Number: TEA6845H/V2,557
• Description: IC CAR RADIO TUNER 64-QFP
• Manufacturer: NXP Semiconductors

Specifications of TEA6845H/V2,557

• Frequency: AM, FM, WB
• Modulation Or Protocol: AM, FM
• Applications: AM/FM Radio Receiver
• Current - Receiving: 78mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 7.8 V ~ 9.2 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Sensitivity: -
• Memory Size: -
• Data Rate - Maximum: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 935262638557; TEA6845H/V2; TEA6845H/V2

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.
Exception to the standard I
12.1.1
Connecting pin FREF to V
feeding 50 A into that pin switches the IC into the test
mode.
During test mode the digital-to-analog converters of the
level and antenna DAA functions can be sequenced by the
I
During test mode either the TEA688x or TEF689x
reference frequency, the PLL reference frequency divider
or the programmable divider output can be switched to
pin FREF.
12.1.2
Data sequence: address, byte 1, byte 2, byte 3, byte 4,
byte 5, and byte 6. The data transfer has to be in this
2003 Feb 04
2
C-bus SCL line.
1st IC address C2: 1100001
2nd IC address C0: 1100000.
The data hold time t
New In Car Entertainment (NICE) car radio
2
C-BUS PROTOCOL
2
C-bus and how to use it” (order number
I
2
C-bus specification
T
D
EST MODE
ATA TRANSFER
2
C-bus specification is expanded by the
2
C-bus logic: slave transceiver with auto
2
HD;DAT
C-bus can be found in the brochure
DDA1
2
C-bus specification:
must be at least 1 s.
via a 100 k resistor or
28
order. The LSB = 0 indicates a WRITE operation to the
TEA6845H.
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:
In byte 5, 4 bits are reserved for test mode purposes.
Those can only be used when the test mode is activated
by the select pin FREF.
12.1.3
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.
12.1.4
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:
2
C-bus pull-down can occur switching off the tuner IC
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.
First: bit MUTE = 1
Second: bit MUTE = 0.
2
C-bus to the TEA688x or TEF689x, the pull-up
I
F
2
REQUENCY SETTING
C-bus p
2
ULL
C-bus buffer interface of the TEA688x
-
UP RESISTORS
2
C-bus transmissions are
Product specification
TEA6845H