Datasheet
SSM2603 Data Sheet
Rev. C | Page 8 of 32
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Figure 6. Pin Configuration
Table 9. Pin Function Descriptions
Pin No. Mnemonic Type Description
1 MCLK/XTI Digital Input Master Clock Input/Crystal Input.
2 XTO Digital Output Crystal Output.
3 DCVDD Digital Supply Digital Core Supply.
4
DGND
Digital Ground
Digital Ground.
5 DBVDD Digital Supply Digital I/O Supply.
6 CLKOUT Digital Output Buffered Clock Output.
7 BCLK Digital Input/Output Digital Audio Bit Clock.
8 PBDAT Digital Input DAC Digital Audio Data Input, Playback Function.
9 PBLRC Digital Input/Output DAC Sampling Rate Clock, Playback Function (from Left and Right Channels).
10 RECDAT Digital Output ADC Digital Audio Data Output, Record Function.
11 RECLRC Digital Input/Output ADC Sampling Rate Clock, Record Function (from Left and Right Channels).
12 HPVDD Analog Supply Headphone Supply.
13 LHPOUT Analog Output Headphone Output for Left Channel.
14 RHPOUT Analog Output Headphone Output for Right Channel.
15 PGND Analog Ground Headphone Ground.
16 LOUT Analog Output Line Output for Left Channel.
17 ROUT Analog Output Line Output for Right Channel.
18 AVDD Analog Supply Analog Supply.
19 AGND Analog Ground Analog Ground.
20 VMID Analog Output Midrail Voltage Decoupling Input.
21
MICBIAS
Analog Output
Microphone Bias.
22 MICIN Analog Input Microphone Input Signal.
23 RLINEIN Analog Input Line Input for Right Channel.
24 LLINEIN Analog Input Line Input for Left Channel.
25 MUTE Digital Input DAC Output Mute, Active Low
26 CSB Digital Input 2-Wire Control Interface I
2
C Address Selection.
27 SDIN Digital Input/Output 2-Wire Control Interface Data Input/Output.
28 SCLK Digital Input 2-Wire Control Interface Clock Input.
Exposed Pad Thermal Exposed Pad Connect the exposed pad to the PCB ground layer.
PIN 1
INDICATOR
1MCLK/XTI
2XTO
3DCVDD
4DGND
5DBVDD
6CLKOUT
7BCLK
17 ROUT
18 AVDD
19 AGND
20 VMID
21 MICBIAS
16 LOUT
15 PGND
8PBDAT
9PBLRC
10RECDAT
12HPVDD
13LHPOUT
14RHPOUT
11RECLRC
24
LLINEIN
25
MUTE
26
CSB
27
SDIN
28
SCLK
23
RLINEIN
22
MICIN
TOP VIEW
(Not to Scale)
SSM2603
07241-002
NOTES
1. CONNECT THE EXPOSED PAD TO THE PCB
GROUND LAYER.