A3V56S40GTP-60 (DIGITAL : IC252 / IC262 / IC272 / IC282)
Block Diagram
A3V56S30GTP
A3V56S40GTP
256M Single Data Rate Synchronous DRAM
Revision 1.0 May, 2013
CLK : Master Clock DQM : Output Disable / Write Mask (A3V56S30GTP)
CKE : Clock Enable U,L DQM : Output Disable / Write Mask (A3V56S40GTP)
/CS : Chip Select A0-12 : Address Input
/RAS : Row Address Strobe BA0,1 : Bank Address
/CAS : Column Address Strobe V
DD : Power Supply
/WE : Write Enable V
DDQ : Power Supply for Output
DQ0-7 : Data I/O (A3V56S30GTP) V
SS : Ground
DQ0-15 : Data I/O (A3V56S40GTP) VSSQ : Ground for Output
DD
DDQ
Pin Configuration (Top View)
AK4458VN (FRONT CNT : IC301, IC311)
Pin Function
No. Pin Name I/O Function PD State
1 MCLK I External Master Clock Input Pin Hi-Z
2
BICK I Audio Serial Data Clock Pin in PCM mode
Hi-z
DCLK I DSD Clock Pin in DSD mode
3
LRCK I Input Channel Clock Pin in PCM mode
Hi-Z
DSDL1 I Audio Serial Data Input in DSD mode
4
SDTI1 I Audio Serial Data Input in PCM mode
Hi-Z
DSDR1 I Audio Serial Data Input in DSD mode
5
SDTI2 I Audio Serial Data Input in PCM mode
Hi-Z
DSDL2 I Audio Serial Data Input in DSD mode
6
SDTI3 I Audio Serial Data Input in PCM mode
100k Ω
Pull down
DSDR2 I Audio Serial Data Input in DSD mode
TDMO1 O Audio Serial Data Output in Daisy Chain mode
7
SDTI4 I Audio Serial Data Input in PCM mode
100k Ω
Pull down
DSDL3 I Audio Serial Data Input in DSD mode
TDMO2 O Audio Serial Data Output in Daisy Chain mode
8 DSDR3 I Audio Serial Data Input in DSD mode Hi-Z
9 DSDL4 I Audio Serial Data Input in DSD mode Hi-Z
10 DSDR4 I Audio Serial Data Input in DSD mode Hi-Z
11
DZF O Zero Input Detect in I2C Bus or 3-wire serial control mode
100k Ω
Pull down
SMUTE I
Soft Mute Pin in Parallel control mode.
When this pin is changed to "H", soft mute cycle is initiated. When it is returning to "L", the
output mute is released.
12
CAD1 I Chip Address 0 Pin in I C Bus or 3-wire serial control mode
Hi-Z
DCHAIN I Daisy Chain Mode select pin in Parallel control mode.
13
SDA I/O Control Data Pin in I2C Bus serial control mode
Hi-ZCDTI I Control Data Input Pin in 3-wire serial control mode
TDM0 I TDM Mode select pin in Parallel control mode.
14
SCL I Control Data Clock Pin in I2C Bus serial control mode
Hi-ZCCLK I Control Data Clock Pin in 3-wire serial control mode
TDM1 I TDM Mode select pin in Parallel control mode.
[AK4458]
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5. Pin Configurations and Functions
Ordering Guide
AK4458VN 40
+105 C (Exposed pad is connected to ground)
40 +85 C (Exposed pad is open)
48-pin QFN (0.5mm pitch)
AKD4458 Evaluation Board for AK4458
Pin Configurations
Note 1. The exposed pad at back face of the package must be open or connected to the ground of the board.
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
68