TC9495F Datasheet, PDF (13/17 Pages) Toshiba Semiconductor – Digital Servo Single Chip Processor Built in 1 Bit DA Converter

TC9495F
Analog Circuit Characteristics
1. A/D Converter
Characteristics
Resolution
Sampling frequency
FE
TE
SBAD
RFRP
Conversion input range
Test
Circuit
Test Condition
Min Typ. Max Unit
¾
¾
¾
8
¾
bit
¾ 176.4 ¾
¾ XI = 16.9344 MHz
¾ 176.4 ¾
kHz
¾ 88.2 ¾
¾ 176.4 ¾
¾
Ex. V_SS = 0 V, 2V_REF = 4.2 V
0.15 ´
2V_REF
¾
0.85 ´
2V_REF
V
2. D/A Converter (focus, tracking equalizer output)
Characteristics
Bit number
Sampling frequency
Output signal range
Test
Circuit
¾
¾
¾
Test Condition
¾
¾
¾
Min Typ. Max Unit
¾
¾
AV_SS
5
¾
bit
2.8
¾ MHz
¾ 2V_REF V
3. PLL Filter Amp.
Characteristics
Input/output signal range
Frequency characteristics
Test
Circuit
Test Condition
¾
¾
¾ -3 dB point, RNF = 15 kW
Min Typ. Max Unit
V_SS
¾ 2V_REF V
2
4
¾ MHz
4. VCO (PLL)
Characteristics
Center oscillation frequency
Frequency variation range
VCOREF terminal
input voltage range
upper limit
lower limit
Test
Circuit
Test Condition
¾
LPFO = V_REF,
VCOREF = V_REF
¾
VCOREF = V_REF,
VCOGSL = “H”
¾
VCOREF = V_REF,
VCOGSL = “L”
¾ V_REF reference
Min Typ. Max Unit
¾
34.6
¾
MHz
±40 ±50 ¾
%
¾
±40
¾
¾
¾
1.0
V
-0.5 ¾
¾
5. TEZI Signal Comparator
Characteristics
Input range
Input amplitude
Hysteresis voltage
Test
Circuit
Test Condition
¾
¾
¾
¾
¾ V_REF reference
Min Typ. Max Unit
V_SS
¾ 2V_REF V
1.0
¾
3.5 V_p-p
¾
100
¾
mV
13
2002-01-11