bt8970 Mindspeed Technologies, bt8970 Datasheet - Page 89

• Manufacturer Part Number: bt8970
• Description: Single-chip Hdsl Transceiver
• Manufacturer: Mindspeed Technologies

Bt8970
Single-Chip HDSL Transceiver
5.6.2 Analog Specifications
Table 5-17. Receiver Analog Requirements and Specifications
100101B
Input Signals
Input Voltage Range
Input Resistance
Common Mode Voltage
Variable Gain Amplifier (VGA)
Gain Step
Gain Error
Analog-to-Digital Converter
Output Symbol Rate (F
Differential Voltage Range (Full Scale
Input, FS)
Timing Recovery PLL Pull-In Range
NOTE(S):
1. Corresponds to the voltages that will produce a full scale reading from the ADC when the VGA gain equals O dB. Input
voltage range is reduced proportionally as VGA gain is increased.
(1)
Parameter
QCLK
Preliminary Information/Conexant Proprietary and Confidential
)
RXP, RXN, RXBP, and RXBN
Balanced Differential
DC to 1 MHz
VCOMI
Six gains from 0 dB to +15 dB
QCLK frequency (Data Rate/2)
(V
RXP
–V
RXN
Comments
)—(V
Conexant
RXBP
–V
RXBN
)
5.0 Electrical & Mechanical Specifications
–4.5
2.55
Min
TBD
200
±64
5.4
—
0.4*VAA
5.6 Microcomputer Interface Timing
Typ
3.0
6.0
—
—
—
—
Max
+4.5
3.42
±10
584
6.6
—
—
—
Units
ppm
kHz
k
—
—
—
dB
—
V
%
V
P
5-17