GDC21D003 Datasheet, PDF (29/77 Pages) Hynix Semiconductor – VSB Receiver

GDC21D003
6.1.1 Electrical Characteristics
DC & AC Characteristics
Symbol
Parameters
(Temp = 25°C, DVDD = 3.3V, AVDD = 3.3V, COM = 1.5V)
Conditions
Min. Typ. Max. Measure Unit
Value
INN,INP Analog Input Voltage
I_dd
Normal Operation
INL
Integral
Non-Linearity
DNL
Differential
Non-Linearity
SNR
Signal-to-Noise Ratio
Fs
Sampling Clock
Frequency
Differential
1.7± 0.5
Fs = 10.76 Msps
Input = 1.7± 0.5V
Fs = 10.76 Msps
Input = 1.7± 0.5V
(F_in*=12.2KHz sine)
Fs = 10.76 Msps
Input = 1.7± 0.5V
(F_in =12.2KHz sine)
Fs = 10.76 Msps
F_in = 100KHz
1
2
25
± 4 ±6
±1 ±2
44
48
10.76
Vpp
mA
LSB
LSB
dB
MHz
C_i**
Input Pin Capacitance INP = 1.7V
10
pF
INN = 1.7V
R_ref
Reference Resistance
12
kΩ
V_REFP*** Reference
Top Voltage
2.15 2.2 2.4
V
V_REFN*** Reference Bottom
Voltage
1.15 1.2 1.4
V
(NOTE) * F_in is input frequency.
** C_i = 1pF(pin capacitance) + 5pF(I/O pad capacitance)
+ 4.5pF(capacitance at the input sampling)
*** V_REFP, V_REFN values should be used as a pair.
Analog Input Voltage Level vs. Digital Output Code
Input Voltage Level
V_REFP
.
.
.
.
.
.
V_REFN
Step
1023
.
.
512
511
.
.
0
MSB
11
10
01
00
Digital Output Code
111111
.
.
000000
111111
.
.
000000
LSB
11
00
11
00
30