HD49335F Renesas Electronics Corporation., HD49335F Datasheet - Page 19

• Manufacturer Part Number: HD49335F
• Description: Cds/pga And 10-bit A/d Tg Converter
• Manufacturer: Renesas Electronics Corporation.

HD49335F/HF
• Output mode (D2 to D4 of address H’F1 and address H’F4 of D6)
• SHA-fsel (D8 to D9 of address H’F1)
• SHSW-fsel (D10 to D13 of address H’F1)
• Test_I2 (D14 to D15 of address H’F1)
• Clamp (D0 to D4 of address H’F2)
• HGstop-Hsel, HGain-Nsel (D8 to D11 of address H’F2)
• Low_PWR (D12 of address H’F2)
• ADSEL (D14 of address H’F2)
• Reset (D15 of address H’F2)
• Address H'F3 are all testing data.
Rev.1.0, Feb.25.2004, page 19 of 29
1
1
It is a test mode. Combination details are table 3 to 5. Normally set to all 0.
It is a LPF switching of SH amplifier. Frequency characteristics are referred to page 8. To get rough idea, set the
double cut off frequency point with using.
It is a time constant which sampling the black level of SH amplifier. Frequency characteristics are referred to page
8. To get rough idea, set the double cut off frequency point with using. S/N changes by this data, so find the
appropriate point with set data to up/down.
Current of ADC analog part can be set minutely. Normally use data = 0.
Determine the OB part level with digital code of ADC output.
Determine the lead-in speed of OB clamp. Details are referred to page 7. PGA gain need to be changed for switch
the high speed leading mode. Transfer the gain +1/–1 to previous field, its switch to high speed leading mode.
Switch circuit current and frequency characteristic.
Software reset.
Offset calibration should be done when starting up with using this bit. Details are referred to page 23.
Normally set to all 0., or do not transfer the data.
1
1
0: Default (100%)
1: 150%
2: 50%
3: 80%
Clamp level = setting data × 2 + 14
Default data is 9 = 32 LSB.
Data = 0: 36 MHz guarantee
Data = 1: 25 MHz guarantee
Data = 0: Select CDS_in
Data = 1: Select ADC_in
Data = 1: Normal
Data = 0: Reset
1
1
Address
Address
1
1
0
0
0
0
1
1
0
1
D7 D6 D5
STD1[7:0] (L)
STD1[7:0] (L)
D4 D3 D2 D1 D0 D15 D14 D13 D12 D11 D10 D9 D8
D4 D3 D2
Clamp level
D1 D0 D15 D14 D13 D12 D11 D10 D9 D8
STD2[15:8] (H)
STD2[15:8] (H)
HGain-Nsel
HGstop-Hsel