參數資料
型號: MAX3580ETJ+T
廠商: Maxim Integrated Products
文件頁數: 4/20頁
文件大?。?/td> 0K
描述: IC TV TUNER DIRECT-CONV 32TQFN
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 2,500
類型: 直接轉換電視調諧器
應用: 機頂盒
安裝類型: 表面貼裝
封裝/外殼: 32-WFQFN 裸露焊盤
供應商設備封裝: 32-TQFN-EP(5x5)
包裝: 帶卷 (TR)
MAX3580
Direct-Conversion TV Tuner
12
______________________________________________________________________________________
Detailed Description
Programmable Registers
The MAX3580 includes thirteen write/read registers and
three read-only registers. See Table 2 for register con-
figuration and the
Register Description section. The
register configuration of Table 2 shows each bit name
and the bit usage information for all registers. “U”
labeled under each bit name indicates that the bit
value is user defined to meet specific application
requirements. A “0” or “1” indicates that the bit must be
set to the defined “0” or “1” value for proper operation.
Operation is not tested or guaranteed if these bits are
programmed to other values and is only for
factory/bench evaluation. For field use, always program
to the defined operational state. Note that all registers
must be written after and no earlier than 100s after
device power-up.
Note 1: To correctly tune the VCO during a channel
change, first write to Register 0x05, continuing through
Register 0x06 to Register 0x12, and then write to
Register 0x00 through Register 0x04.
Note 2: Upon power-up or recovery from a supply volt-
age brownout, all registers must be written, including
the “factory use only” values. Follow up by writing the
register needed for tuning to a particular frequency per
note above or simply rewrite all registers a second time.
Table 2. Register Configuration
8-BIT DATA
REGISTER SETTINGS
REGISTER
ADDRESS
D7
D6
D5
D4
D3
D2
D1
D0
OPERATION
DEFINED
DEFAULT
SETTINGS
(POR)
REGISTER
NAME
0x00
N7
U
N6
U
N5
U
N4
U
N3
U
N2
U
N1
U
N0
U
H17
N-Divider Integer
0x01
MP
0
LI1
0
LI0
0
INT
U
F19
U
F18
U
F17
U
F16
U
h18
N-Divider Frac2
0x02
F15
U
F14
U
F13
U
F12
U
F11
U
F10
U
F9
U
F8
U
h00
N-Divider Frac1
0x03
F7
U
F6
U
F5
U
F4
U
F3
U
F2
U
F1
U
F0
U
h00
N-Divider Frac0
0x04
TFS<7>
U
TFS<6>
U
TFS<5>
U
TFS<4>
U
TFS<3>
U
TFS<2>
U
TFS<1>
U
TFS<0>
U
hDB
Tracking Filter
Series Caps
0x05
VCO_DIV1
U
VCO_DIV0
U
RFS
U
TF_BS
U
TFP<3>
U
TFP<2>
U
TFP<1>
U
TFP<0>
U
h7C
Tracking Filter
Parallel Cap
0x06
RDIV
U
ICP
U
CPS
U
ADLY1
0
ADLY0
1
LF_DIV2
U
LF_DIV1
U
LF_DIV0
U
h0A
PLL Configuration
0x07
CP_TST2
0
CP_TST1
0
CP_TST0
0
X
0
TURBO
1
LD_MUX2
U
LD_MUX1
U
LD_MUX0
U
h08
Test Functions
0x08
X
0
SHDN_BG
U
SHDN_PD
1
SHDN_REF
U
SHDN_SYN
U
SHDN_MX
U
SHDN_BB
U
SHDN_RF
U
h00
Shutdown Control
0x09
VCO1
U
VCO0
U
BS2
U
BS1
U
BS0
U
VAS
1
ADL
0
ADE
0
hC0
VCO Control
0x0A
BB_BW3
U
BB_BW2
U
BB_BW1
U
BB_BW0
U
X
0
PD_TH2
U
PD_TH1
U
PD+TH0
U
h87
Baseband Control
0x0B
BB_BIA
0
DC_DAC8
0
DC_MO1
1
DC_MO0
1
DC_SP1
1
DC_SP0
0
DC_TH1
0
DC_TH0
0
h38
h40
DC Offset Control
0x0C
DC_DAC7
0
DC_DAC6
0
DC_DAC5
0
DC_DAC4
0
DC_DAC3
0
DC_DAC2
0
DC_DAC1
0
DC_DAC0
0
h00
DC Offset DAC
0x0D
X
0
FUSE_TH
0
X
0
WR
0
TFA<3>
U
TFA<2>
U
TFA<1>
U
TFA<0>
U
h00
ROM Table
Address
0x0E
TFD<7>
0
TFD<6>
0
TFD<5>
0
TFD<4>
0
TFD<3>
0
TFD<2>
0
TFD<1>
0
TFD<0>
0
h00
ROM Table Fuse
Data
0x0F
X
0
X
0
X
0
X
0
MX_HR<3>
0
MX_HR<2>
0
MX_HR<1>
0
MX_HR<0>
0
h00
Mixer Harmonic
Rejection
0x10
TFR<7>
TFR<6>
TFR<5>
TFR<4>
TFR<3>
TFR<2>
TFR<1>
TFR<0>
N/A
ROM Table Data
Read Back
0x11
POR
VASA
VASE
LD
DC_LO
DC_HI
GKT
PD_OVLD
N/A
Chip Status Read
Back
0x12
VCO1A
VCO0A
BS2A
BS1A
BS0A
ADC2
ADC1
ADC0
N/A
Autotuner Read
Back
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