CS42L51-CNZR Cirrus Logic Inc, CS42L51-CNZR Datasheet - Page 38

• Manufacturer Part Number: CS42L51-CNZR
• Description: IC LV Stereo Codec F/Digital Audio Apps
• Manufacturer: Cirrus Logic Inc
• Type: Stereo Audior

Specifications of CS42L51-CNZR

• Data Interface: PCM Audio Interface
• Resolution (bits): 24 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• Dynamic Range, Adcs / Dacs (db) Typ: 98 / 98
• Voltage - Supply, Analog: 1.8V, 2.5V
• Voltage - Supply, Digital: 1.8V, 2.5V
• Operating Temperature: -10°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 32-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1005 - BOARD EVAL FOR CS42L51 CODEC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q3956082

38
4.5.2
4.5.3
Master
LRCK and SCLK are internally derived from the internal MCLK (after the divide, if MCLKDIV2 is enabled).
In hardware mode the CODEC operates in single-speed only. In software mode the CODEC operates in
either quarter-, half-, single- or double-speed depending on the setting of the SPEED[1:0] bits.
High-Impedance Digital Output
The serial port may be placed on a clock/data bus that allows multiple masters, without the need for ex-
ternal buffers. The 3ST_SP bit places the internal buffers for the serial port signals in a high-impedance
state, allowing another device to transmit clocks or data without bus contention.
MCLK
Transmitting Device #1
CS42L51
÷ 1
÷ 2
3ST_SP
Figure 18. Master Mode Timing
Figure 19. Tri-State Serial Port
MCLKDIV2
0
1
Receiving Device
SCLK/LRCK
SDOUT
÷ 128
÷ 128
÷ 256
÷ 512
÷ 2
÷ 2
÷ 4
÷ 8
Transmitting Device #2
Double
Speed
Quarter
Quarter
Single
Speed
Speed
Speed
Double
Single
Speed
Speed
Speed
Speed
Half
Half
SPEED[1:0]
00
01
10
11
00
01
10
11
LRCK Output
SCLK Output
(Equal to Fs)
CS42L51
DS679A2