STV0299B STMicroelectronics, STV0299B Datasheet - Page 22

• Manufacturer Part Number: STV0299B
• Manufacturer: STMicroelectronics

Specifications of STV0299B

• Pin Count: 64
• Screening Level: Commercial
• Lead Free Status / Rohs Status: Specific Sites Compliant

STV0299B
5
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INPUT/OUTPUT CONFIGURATION REGISTER (refer to Section 4.2.1 on page 12)
AGC1 CONTROL REGISTER (refer to Section 4.2.2 on page 12)
TIMING LOOP REGISTER (refer to Section 4.3.1 on page 13)
AGC1 REFERENCE REGISTER (refer to Section 4.2.2 on page 12)
AGC2 AND OFFSET CONTROL REGISTER (refer to Section 4.2.5 on page 12)
REGISTER LIST (continued)
AGC2O
AGC1C
AGC1R
IOCFG
Name
RTC
Address
HEX
0C
0D
0E
0F
10
Reset
Value
F0
81
23
54
74
Position
[2:1]
[6:3]
[2:0]
[6:4]
[2:0]
[5:0]
[7:5]
[4:0]
Bit
7
6
5
4
3
0
7
7
3
7
6
OP1 control
1: Open drain
0: Normal
OP1 value
OP0 control
1: Open drain
0: Normal
OP0 value
This bit must be programmed to zero.
Nyquist Filter
These bits determine Nyquist filter settings:
00 = raised cosine at 35%
01 = raised cosine at 20%
10 = reserved
11 = reserved
Bit 0 when set, multiplies the data on the Q input by -1 in order to
accommodate QPSK modulation with another convention of rotation
sense. This is equivalent to a permutation of I and Q inputs, or a spec-
tral symmetry. This permutation is performed after derotation.
DC offset compensation:
1: On
0: Off
These bits must be programmed to zero.
beta_agc1
This bit must be programmed to zero.
alpha_tmg
This bit must be programmed to zero.
beta_tmg
Iagc
1: Invert
0: Normal
If Iagc is set, the output signal is complemented (i.e. a high value for
the AGC voltage will cause a high gain in the tuner).
This bit must be programmed to zero.
AGC1 Reference Value (m1). Refer to page 12.
AGC2 Coefficient
AGC2_Ref (m2)
Signal Description