TEA6843HL/V1,557 NXP Semiconductors, TEA6843HL/V1,557 Datasheet - Page 34

• Manufacturer Part Number: TEA6843HL/V1,557
• Description: IC CAR RADIO TUNER 80-LQFP
• Manufacturer: NXP Semiconductors

Specifications of TEA6843HL/V1,557

• Frequency: AM, FM, WB
• Modulation Or Protocol: AM, FM
• Applications: AM/FM Radio Receiver
• Current - Receiving: 90mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2.5 V ~ 12 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: -
• Other names: 935268098557; TEA6843HL/V1; TEA6843HL/V1

Philips Semiconductors
12 I
12.1
The standard I
following definitions.
IC addresses:
A second I
pin FREF via a 68 k resistor to GND.
Structure of the I
increment.
Subaddresses are not used.
Remark: The I
100 kHz. It is not allowed to connect the IC to an I
operating at a higher clock rate. Maximum LOW level is
1.5 V and minimum HIGH level is 3 V.
12.1.1
Data sequence: address, 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
TEA6843HL.
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.
12.2
12.2.1
Table 1 Write mode
Notes
1. S = START condition.
2. A = acknowledge.
3. P = STOP condition.
2003 Dec 19
1st IC address C2H: 1100001 R/W
2nd IC address C0H: 1100000 R/W.
New In Car Entertainment (NICE)
extended car radio
2
S
C-BUS PROTOCOL
I
I
(1)
2
2
C-bus specification
C-bus protocol
D
D
2
ATA TRANSFER
ATA TRANSFER MODE AND
C-bus address can be selected by connecting
2
2
C-bus operates at a maximum clock rate of
C-bus specification is expanded by the
2
C-bus logic: slave transceiver with auto
address (write)
IC
ADDRESS
2
C-bus
34
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. The
state of the test bits, if not in test mode, is don’t care.
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.
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.
A
2
C-bus to the TEA688x or TEF689x, the pull-up
(2)
I
F
D
2
REQUENCY SETTING
C-
EFAULT SETTINGS
BUS PULL
data byte(s)
2
C-bus buffer interface of the TEA688x
-
UP RESISTORS
2
C-bus transmissions are
A
(2)
TEA6843HL
Product specification
2
C-bus
P
(3)