TDA18271HD NXP Semiconductors, TDA18271HD Datasheet - Page 14

• Manufacturer Part Number: TDA18271HD
• Description: Silicon Tuner IC
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TDA18271HD_3
Product data sheet
9.3.2 Description of chip ID byte
9.3.3 Description of temperature sensor byte
Table 8.
Legend: * power-on reset value.
Table 9.
Legend: * power-on reset value.
Table 10.
Legend: * power-on reset value.
The temperature sensor is not available in Device-off mode, as it requires a 16 MHz clock
to operate.
Table 11.
Legend: * power-on reset value.
Bit
7 to 3
2 to 1
0
Bit
7 to 6
5 to 0
Bit
7
6 to 0
Bit
7
6
5
4
3 to 0 TM_D[3:0]
Symbol
POR
LOCK
TM_RANGE R/W
TM_ON
Symbol
-
MA[1:0]
R/W
Symbol
-
AD[5:0]
Symbol
-
ID[6:0]
Address byte 1 bit description
Address byte 2 bit description
ID - identification byte (subaddress 00h) bit description
TM - Thermo byte (subaddress 01h) bit description
Access Value Description
R
R
R/W
R
Rev. 03 — 11 September 2008
Access
R/W
R/W
R/W
Access
R/W
R/W
Access
R
R
1*
0
1
0*
1
0*
1
0*
XXXX data from die temperature measurement (see
power supply falls below the power-on reset level and is
reset after a read operation ending with a stop condition
power supply is above the power-on reset level
main synthesizer is locked to the programmed frequency
main synthesizer is not locked to the programmed
frequency
temperature range selection for the internal die sensor (see
Table
enables die temperature measurement (see
disables die temperature measurement (see
Value
1 1000*
00
01
10
11
0
1
Value
00
-
Value
1*
000 0100*
92 C to 122 C
60 C to 90 C
52)
Description
must be set to 1 1000
programmable address bits
write mode
read mode
Description
must be set to 00
programmable address bits of the first
programming byte
Description
must be 1
TDA18271HD/C2 identification number
V
V
V
V
AS
AS
AS
AS
= 0 V to 0.1
= 0.2
= 0.4
= 0.9
TDA18271HD
V
V
V
CC
CC
CC
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to 0.3
to 0.6
to V
V
CC
CC
© NXP B.V. 2008. All rights reserved.
Silicon Tuner IC
V
V
Table
CC
CC
Table
Table
52)
52)
52)
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