VP211 MITEL [Mitel Networks Corporation], VP211 Datasheet - Page 4

• Manufacturer Part Number: VP211
• Description: Dual 90MHz 6-Bit Analog to Digital Converter
• Manufacturer: MITEL [Mitel Networks Corporation]

ELECTRICAL CHARACTERISTICS DEFINITIONS
Analog Bandwidth
of the fundamental frequency, as determined by FFT analysis
is reduced by 3dB.
Aperture Delay
signal and the instant the analog input signal is sampled.
Aperture Jitter
Bit Error Rate (BER)
given input sinewave frequency at a given clock frequency. In
this case it is the number of codes occurring outside the
histogram cusp for a 1/2 FS sinewave.
Data Outputs, Set-up and Hold Time
threshold to the 50% threshold on the rising edge of the
output clock.
Differential Non-linearity
PIN DESCRIPTIONS -
VP211
4
The analog input frequency at which the spectral power
The delay between the rising edge of the 90MHz clock
The sample to sample variation in aperture delay.
The number of spurious code errors produced for any
Data output timings are measured from the 50%
The deviation in any code width from an ideal 1 LSB step.
Pin
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
COMPB
COMPA
CLKIN
DGND
OGND
AGND
Name
V
V
VINA
V
VINB
VRM
VRB
VRT
N.C.
N.C.
DB0
DB1
DB2
DB3
DB4
DB5
DA0
DA1
DA2
DA3
DA4
DA5
CCD
CCO
CCA
28 Pin Plastic SO Package
TTL digital output - channel B - MSB
Output voltage supply for TTL data outputs
Output ground
TTL digital output - channel A - MSB
TTL clock input
Digital voltage supply for ADC’s and input clock
Digital ground
Reference voltage- ladder top
Capacitor compensation - A channel
Analog signal input - A channel
Analog ground
Analog voltage supply for drivers and references
Reference voltage- ladder middle
Capacitor compensation - B channel
Analog signal input - B channel
Reference voltage- ladder bottom
Not connected
Not connected
TTL digital output - channel B - LSB
TTL digital output - channel A - LSB
Table 2: Pin descriptions
Effective Number of Bits (ENOB)
and may be obtained from the SNR or from a sine wave
curve test fit according to the following expressions:
where N is the conversion resolution and the actual rms error
is the deviation from an ideal sine wave, calculated from the
converter outputs with a sine wave input.
Integral Non-linearity (INL)
reference line which has been determined by a least squares
curve fit.
Signal-to-Noise Ratio (SNR)
‘noise’ which is defined as the sum of all other spectral
components, including the harmonics, but excluding D.C.
with a full-scale analog input signal.
This is a measure of a device's dynamic performance
ENOB = SNR-1.76/6.02
ENOB = N-log2[rms error (actual)/rms error (ideal)]
The deviation of the centre of each code from a
The ratio of the rms signal amplitude to the rms value of
Description
or