参数资料
型号: MAX3543EVKIT+
厂商: Maxim Integrated
文件页数: 10/20页
文件大小: 0K
描述: EVAL KIT MAX3543
标准包装: 1
系列: *
Multiband Analog and
Digital Television Tuner
Control Register Description
The MAX3543 includes 18 programmable registers,
two status registers (read only), one register for ROM
readback (read only), and one for Maxim use only. The
programmable registers configure the VCO settings, PLL
settings, detector and AGC settings, state control, bias
adjustments, individual block shutdown, and the track-
ing filter frequency. These programmable registers are
also readable. The read-only registers include two status
registers and a ROM table data register.
Table 3. Register Configuration
Typical bit settings are provided only for user conve-
nience and are not guaranteed at power-up. All registers
must be written no earlier than 100 F s after power-up
or recovery from a brownout event (i.e., when V CC
drops below 1V) to initialize the registers. Then follow
up by rewriting the registers needed for channel/fre-
quency programming (i.e., registers R00–R04). The typi-
cal values listed in Table 3 configure the MAX3543 for
DTV reception with 16MHz crystal, 8MHz channel BW,
36.15MHz IF center frequency, differential LC bandpass
filter, and 666MHz RF center frequency.
REG
REG
REGISTER
TYPICAL MSB
BIT LOCATION
LSB
ADDR NAME
FUNCTION
SETTING
7
6
5
4
3
2
1
0
0x00
0x01
R00
R01
VCO
NDIV INT
4C
2B
VCO[1:0]
VSUB[3:0]
NINT[7:0]
VDIV[1:0]
0x02
R02
NDIV FRAC2
8E
CPS
CP
RDIV[1:0]
F[19:16]
0x03
0x04
R03
R04
NDIV FRAC1
NDIV FRAC0
(VAS Trigger)
26
66
F[15:8]
F[7:0]
0x05
R05
MODE CTRL
D8
LNA2G
RFIN
RFLPF
CHBW
TFB[1:0]
IFSEL[1:0]
0x06
R06
TFS
30
TFS[7:0]
0x07
R07
TFP
12
TFP[5:0]
0x08
R08
SHUTDOWN
00
STBY
SDRF
SDMIX
SDIF
SDIFVG
SDPD
SDSYN
SDVCO
0x09
R09
REF CONFIG
0A
CPLIN[1:0]
ALC[1:0]
XODIV
0x0A
0x0B
R0A
R0B
VAS CONFIG
PWRDET CFG1
17
43
LFDIV[1:0]
DWPD
VASS
WPDA[2:0]
VAS
ADL
DNPD
ADE
LTC[1:0]
NPDA[2:0]
0x0C
R0C
PWRDET CFG2
01
PULLUP
RFIFD[1:0]
0x0D
R0D
FILT CF ADJ
ROM
CFSET[5:0]
0x0E
R0E
ROM ADDR
00
ROMA[3:0]
0x0F
0x10
R0F
R10
IRHR
ROM READBACK
ROM
RO
IRHR[7:0]
ROMR[7:0]
0x11
R11
VAS STATUS
RO
VVCO[1:0]
VVSB[3:0]
VASA
VASE
0x12
R12
GEN STATUS
RO
VCP
TRIM
POR
VCOADC[2:0]
0x13
R13
BIAS ADJ
56
MIXGM
LNA2B[1:0]
MIXB[1:0]
FILTB
IFVGAB
0x14
0x15
R14
R15
TEST1
ROM WRITE DATA
40
00
RESERVED
ROMW[7:0]
Note: Registers should be written in the order of ascending addresses. When changing frequency, write R00 to R07 in order of
ascending addresses to ensure proper VCO setup.
10
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