CXB1575AQ
Typical pin
Pin No. Symbol voltage (V)
DC AC
14 VEER3 0
15 HYS 0.2
Equivalent circuit
Bias
Generator
VCCR
15
VEER3
VCCR
16 DOWN 3
16
17 VCCR 3.3
VEER3
Description
Ground for signal detector.
Connect to VEER3 through an
external resistor to determine
signal detect hysteresis width
(∆P).
When connect to VEER3 directly;
∆P ≈ 6dB (Typ.)
When connected 8.2kΩ to VEER3;
∆P ≈ 3dB (Typ.)
Connect to VCCR through an
external resistor to decrease
signal detect level (SDL). When
open, SDL sets to 18mVp-p.
(single-ended)
Positive supply for signal
detector.
18 D
19 DN
22 CAP1 2.2
23 CAP1B 2.2
18
19
VEER1
VCCR
Serial data stream inputs.
22
23
VEER2
Connect an external capacitor,
which determines low cut-off
frequency for DC feedback loop.
Typically 0.22µF.
20 VEER2 0
21 VEER1 0
24 VCCP 3.3
Ground for post amplifier.
Ground for post amplifier.
Both VEER1 and VEER2 must be
grounded.
Positive supply for PLL circuits.
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