CS42L55-DNZ Cirrus Logic Inc, CS42L55-DNZ Datasheet - Page 30

• Manufacturer Part Number: CS42L55-DNZ
• Description: IC CODEC STER H-HDPN AMP 36-QFN
• Manufacturer: Cirrus Logic Inc
• Type: Stereo Audior

Specifications of CS42L55-DNZ

• Data Interface: Serial
• Resolution (bits): 24 b
• Number Of Adcs / Dacs: 1 / 1
• Sigma Delta: Yes
• Dynamic Range, Adcs / Dacs (db) Typ: 95 / 99
• Voltage - Supply, Analog: 1.65 V ~ 2.71 V
• Voltage - Supply, Digital: 1.65 V ~ 2.71 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 36-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1506 - BOARD EVAL FOR CS42L55 CODEC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

30
-10 dB
Amplifier Rail
- VCP
Output Level
- VCP
When the charge pump transitions from the higher set of rail voltages to the lower set, there is a one sec-
ond delay before the charge pump supplies the lower rail voltages to the amplifiers. This hysteresis en-
sures that the charge pump doesn't toggle between the two rail voltages as signals approach the clip
threshold. It also prevents clipping in the instance of repetitive high level transients in the input signal. The
timing diagram for this transitional behavior is detailed in
VCP
VCP
2
Voltage
2
+VCP
+VCP
-VCP
-VCP
2
2
Ideal Transition
Ideal Transition
Figure 16. VHPFILT Hysteresis
Figure 15. VHPFILT Transitions
Actual Transition caused
Actual Transition caused
by VHPFILT Capacitor
by VHPFILT Capacitor
1 second
Figure
16.
Time
Time
Time
CS42L55
DS773F1