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4.0 Electrical & Mechanical Specifications
4.6 Microcomputer Interface Timing
Bt8960
Single-Chip 2B1Q Transceiver
N8960DSB
4.6.2 Analog Specifications
Table 4-17. Receiver Analog Requirements and Specifications
Parameter Comments Min Typ Max Units
Input Signals RXP, RXN, RXBP, and RXBN
Input Voltage Range Balanced Differential –4.5 +4.5 V
Input Resistance DC to 1 MHz 28 kΩ
Common Mode Voltage VCOMI 0.4*VAA
Variable Gain Amplifier (VGA) Six gains from 0 dB to +15 dB
Gain Step 2.55 3.0 3.42 dB
Gain Error ±10 %
Analog-to-Digital Converter
Output Symbol Rate (F
QCLK
) QCLK frequency (Data Rate/2) 75 210 kHz
Differential Voltage Range (Full
Scale Input, FS)
(1)
(V
RXP
–V
RXN
)—(V
RXBP
–V
RXBN
) 5.4 6.0 6.6 V
P
Timing Recovery PLL Pull-In
Range
±64 ppm
Note: (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.
