MC44CC374T1AEF Freescale Semiconductor, MC44CC374T1AEF Datasheet - Page 17

• Manufacturer Part Number: MC44CC374T1AEF
• Description: Modulator / Demodulator CMOS MOD R3.0 374T1A
• Manufacturer: Freescale Semiconductor

Specifications of MC44CC374T1AEF

• Package / Case: SOIC-16
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Digital Home
Freescale Semiconductor
OPTION CONTROL REGISTER 2 FORMAT
shown in
and PW0 as listed in
is 1.0 volts.
Control Registers 1 and 2. Any other time, writing to Option
Control Registers 1 and 2 is allowed.
DATA/STATUS REGISTER FORMAT
The first byte contains the status information on the RF oscil-
lator out-of-frequency range and is the same format used by
the legacy devices. Therefore, current legacy software will be
unaffected as it will only read back this most significant byte.
are read back without sending a stop condition. This read
back data has no significance to end system applications.
Therefore if it is read by a master, it should be ignored.
MSB
MSB
R15
Adr
R7
The format for the Optional Control Register 2, OCR2, is
The Peak White Clip level may be set by setting bit PW1
When UHF oscillator is disabled, do not write to Option
The data/status read back format is shown in
During manufacturing test, additional two byte registers
The bit description for the status byte is listed in
1
1
-
R14
Figure 10. Status/Data Register Format
Figure
R6
0
-
Reserved
R13
9. Bits R14:R2 are not defined for system
0
R5
-
Table
R12
0
R4
-
20. The default (power-up) setting
R11
0
R3
Reserved for manufacturing test purposes only
-
R10
0
R2
Y2
Figure 9. Option Control Register 2 Format
OSC Status
R9
0
R1
Y1
Figure
Table
R8
0
OOR
10.
LSB
R0
21.
R7
0
applications. They are for manufacturing test only. For nor-
mal operation these bits must be set as defined by the re-
set state.
Table 20. Option Control Register 2, Bit Description
Table 21. Status Byte Bit Description
14-2
R6
Bit Name
15
R7:R3
0
1
0
Bit
R2
R1
R0
PW1
PW0
Adr
R5
—
0
Name
OOR
Y1
Y2
-
Address Function bit. Must be set to a logic 1.
Reserved for manufacturing test.
Peak White Clip level
PW1
R4
0
0
0
1
1
Reserved
Frequency Too High / Too Low
Low/High VCO Active
UHF Osc Out of Freq. Range
0
1
0
1
0
1
PW0
R3
0
0
1
0
1
VCO out of range, frequency too
low, only valid if OOR=1
VCO out of range, frequency too
high, only valid if OOR=1
High VCO is active
Low VCO is active
Normal operation, VCO in range
VCO out of range
R2
1
Description
Description
Video Modulation Depth
for video = 1.4 V
PW1
Peak White
R1
0
clip level
92.5%
90%
94%
91%
PW0
LSB
R0
1
MC44CC373
CVBS
Reset
State
17